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2019-03-20media: Kconfig files: use the right help coding styleMauro Carvalho Chehab70-320/+320
Checkpatch wants to use 'help' instead of '---help---': WARNING: prefer 'help' over '---help---' for new help texts Let's change it globally at the media subsystem, as otherwise people would keep using the old way. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: v4l2-fwnode: Add a deprecation note in the old ACPI parsing exampleSakari Ailus1-1/+4
This is not how ACPI tables are written. Add a deprecation note and refer to the proper documentation. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: ipu3-cio2: Set CSI-2 receiver sub-device entity functionSakari Ailus1-0/+1
Set the entity function for the four CSI-2 receiver sub-devices the driver creates. This avoids a kernel warning from each as well. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: v4l: i2c: Regroup lens drivers under their own sectionSakari Ailus1-37/+39
The lens drivers had ended up under the video decoder section; add a new one just for them, between the camera sensors and flash drivers. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: ti-vpe: Parse local endpoint for properties, not the remote oneSakari Ailus1-10/+2
ti-vpe driver parsed the remote endpoints for properties but ignored the local ones. Fix this by parsing the local endpoint properties instead. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: pxa-camera: Match with device node, not the port nodeSakari Ailus1-1/+1
V4L2 fwnode matching right now still works based on device nodes, not port nodes. Fix this. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: v4l2-fwnode: The first default data lane is 0 on C-PHYSakari Ailus1-1/+5
C-PHY has no clock lanes. Therefore the first data lane is 0 by default. Fixes: edc6d56c2e7e ("media: v4l: fwnode: Support parsing of CSI-2 C-PHY endpoints") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: v4l2-fwnode: Defaults may not override endpoint configuration in firmwareSakari Ailus1-1/+5
The lack of defaults provided by the caller to v4l2_fwnode_endpoint_parse() signals the use of the default lane mapping. The default lane mapping must not be used however if the firmmare contains the lane mapping. Disable the default lane mapping in that case, and improve the debug messages telling of the use of the defaults. This was missed previously since the default mapping will only unsed in this case if the bus type is set, and no driver did both while still needing the lane mapping configuration. Fixes: b4357d21d674 ("media: v4l: fwnode: Support default CSI-2 lane mapping for drivers") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: ov7670: don't access registers when the device is powered offAkinobu Mita1-5/+26
Since commit 3d6a8fe25605 ("media: ov7670: hook s_power onto v4l2 core"), the device is actually powered off while the video stream is stopped. So now set_format and s_frame_interval could be called while the device is powered off, but these callbacks try to change the register settings at this time. The frame format and framerate will be restored right after power-up, so we can just postpone applying these changes at these callbacks if the device is not powered up. Fixes: 3d6a8fe25605 ("media: ov7670: hook s_power onto v4l2 core") Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by: Lubomir Rintel <lkundrak@v3.sk> Tested-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: ov7670: restore default settings after power-upAkinobu Mita1-0/+1
Since commit 3d6a8fe25605 ("media: ov7670: hook s_power onto v4l2 core"), the device is actually powered off while the video stream is stopped. The frame format and framerate are restored right after power-up, but restoring the default register settings is forgotten. Fixes: 3d6a8fe25605 ("media: ov7670: hook s_power onto v4l2 core") Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by: Lubomir Rintel <lkundrak@v3.sk> Tested-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: staging/intel-ipu3: reduce kernel stack usageArnd Bergmann1-12/+23
The imgu_css_queue structure is too large to be put on the kernel stack, as we can see in 32-bit builds: drivers/staging/media/ipu3/ipu3-css.c: In function 'imgu_css_fmt_try': drivers/staging/media/ipu3/ipu3-css.c:1863:1: error: the frame size of 1172 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] By dynamically allocating this array, the stack usage goes down to an acceptable 140 bytes for the same x86-32 configuration. Fixes: f5f2e4273518 ("media: staging/intel-ipu3: Add css pipeline programming") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Cao, Bingbu <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: staging/intel-ipu3: mark PM function as __maybe_unusedArnd Bergmann1-1/+1
The imgu_rpm_dummy_cb() looks like an API misuse that is explained in the comment above it. Aside from that, it also causes a warning when power management support is disabled: drivers/staging/media/ipu3/ipu3.c:794:12: error: 'imgu_rpm_dummy_cb' defined but not used [-Werror=unused-function] The warning is at least easy to fix by marking the function as __maybe_unused. Fixes: 7fc7af649ca7 ("media: staging/intel-ipu3: Add imgu top level pci device driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: staging/intel-ipu3-v4l: reduce kernel stack usageArnd Bergmann1-15/+25
The v4l2_pix_format_mplane structure is too large to be put on the kernel stack, as we can see in 32-bit builds: drivers/staging/media/ipu3/ipu3-v4l2.c: In function 'imgu_fmt': drivers/staging/media/ipu3/ipu3-v4l2.c:753:1: error: the frame size of 1028 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] By dynamically allocating this array, the stack usage goes down to an acceptable 272 bytes for the same x86-32 configuration. Fixes: a0ca1627b450 ("media: staging/intel-ipu3: Add v4l2 driver based on media framework") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: vicodec: reset last_src/dst_buf based on the IS_OUTPUTHans Verkuil1-2/+5
When start_streaming was called both last_src_buf and last_dst_buf pointers were set to NULL, but this depends on whether the capture or output queue starts streaming. When decoding with resolution changes in between the capture queue has to restart streaming whenever a resolution change occurs. And that would reset last_src_buf as well, which causes a problem if the decoder was stopped by the application. Since last_src_buf is now NULL, the LAST flag is never set for the last capture buffer. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: vicodec: remove WARN_ON(1) from get_q_data()Hans Verkuil1-1/+0
Some functions like enum_fmt use the buffer type as was passed from userspace, which might cause the switch to fall into the default case. Just drop the WARN_ON(1) to avoid kernel log pollution. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: em28xx-input: make const array addr_list staticColin Ian King1-1/+1
Don't populate the array addr_list on the stack but instead make it static. Makes the object code smaller by 20 bytes Before: text data bss dec hex filename^M 16929 3626 384 20939 51cb ../usb/em28xx/em28xx-input.o After: text data bss dec hex filename^M 16829 3706 384 20919 51b7 ../usb/em28xx/em28xx-input.o (gcc version 8.3.0, aarch64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: dvb: Add support for the Avermedia TD310Jose Alberto Reguero2-6/+26
This patch add support for Avermedia TD310 usb stick. Signed-off-by: Jose Alberto Reguero <jose.alberto.reguero@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: dvb: init i2c already in it930x_frontend_attachAndreas Kemnade1-42/+42
i2c bus is already needed when the frontend is probed, so init it already in it930x_frontend_attach. That prevents errors like: si2168: probe of 6-0067 failed with error -5 Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Jose Alberto Reguero <jose.alberto.reguero@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: si2165: fix a missing check of return valueKangjie Lu1-3/+5
si2165_readreg8() may fail. Looking into si2165_readreg8(), we will find that "val_tmp" will be an uninitialized value when regmap_read() fails. "val_tmp" is then assigned to "val". So if si2165_readreg8() fails, "val" will be a random value. Further use will lead to undefined behaviors. The fix checks if si2165_readreg8() fails, and if so, returns its error code upstream. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Reviewed-by: Matthias Schwarzott <zzam@gentoo.org> Tested-by: Matthias Schwarzott <zzam@gentoo.org> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: serial_ir: Fix use-after-free in serial_ir_init_moduleYueHaibing1-8/+1
Syzkaller report this: BUG: KASAN: use-after-free in sysfs_remove_file_ns+0x5f/0x70 fs/sysfs/file.c:468 Read of size 8 at addr ffff8881dc7ae030 by task syz-executor.0/6249 CPU: 1 PID: 6249 Comm: syz-executor.0 Not tainted 5.0.0-rc8+ #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xfa/0x1ce lib/dump_stack.c:113 print_address_description+0x65/0x270 mm/kasan/report.c:187 kasan_report+0x149/0x18d mm/kasan/report.c:317 ? 0xffffffffc1728000 sysfs_remove_file_ns+0x5f/0x70 fs/sysfs/file.c:468 sysfs_remove_file include/linux/sysfs.h:519 [inline] driver_remove_file+0x40/0x50 drivers/base/driver.c:122 remove_bind_files drivers/base/bus.c:585 [inline] bus_remove_driver+0x186/0x220 drivers/base/bus.c:725 driver_unregister+0x6c/0xa0 drivers/base/driver.c:197 serial_ir_init_module+0x169/0x1000 [serial_ir] do_one_initcall+0xfa/0x5ca init/main.c:887 do_init_module+0x204/0x5f6 kernel/module.c:3460 load_module+0x66b2/0x8570 kernel/module.c:3808 __do_sys_finit_module+0x238/0x2a0 kernel/module.c:3902 do_syscall_64+0x147/0x600 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x462e99 Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9450132c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 000000000073bf00 RCX: 0000000000462e99 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 RBP: 00007f9450132c70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f94501336bc R13: 00000000004bcefa R14: 00000000006f6fb0 R15: 0000000000000004 Allocated by task 6249: set_track mm/kasan/common.c:85 [inline] __kasan_kmalloc.constprop.3+0xa0/0xd0 mm/kasan/common.c:495 kmalloc include/linux/slab.h:545 [inline] kzalloc include/linux/slab.h:740 [inline] bus_add_driver+0xc0/0x610 drivers/base/bus.c:651 driver_register+0x1bb/0x3f0 drivers/base/driver.c:170 serial_ir_init_module+0xe8/0x1000 [serial_ir] do_one_initcall+0xfa/0x5ca init/main.c:887 do_init_module+0x204/0x5f6 kernel/module.c:3460 load_module+0x66b2/0x8570 kernel/module.c:3808 __do_sys_finit_module+0x238/0x2a0 kernel/module.c:3902 do_syscall_64+0x147/0x600 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 6249: set_track mm/kasan/common.c:85 [inline] __kasan_slab_free+0x130/0x180 mm/kasan/common.c:457 slab_free_hook mm/slub.c:1430 [inline] slab_free_freelist_hook mm/slub.c:1457 [inline] slab_free mm/slub.c:3005 [inline] kfree+0xe1/0x270 mm/slub.c:3957 kobject_cleanup lib/kobject.c:662 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:67 [inline] kobject_put+0x146/0x240 lib/kobject.c:708 bus_remove_driver+0x10e/0x220 drivers/base/bus.c:732 driver_unregister+0x6c/0xa0 drivers/base/driver.c:197 serial_ir_init_module+0x14c/0x1000 [serial_ir] do_one_initcall+0xfa/0x5ca init/main.c:887 do_init_module+0x204/0x5f6 kernel/module.c:3460 load_module+0x66b2/0x8570 kernel/module.c:3808 __do_sys_finit_module+0x238/0x2a0 kernel/module.c:3902 do_syscall_64+0x147/0x600 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8881dc7ae000 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 48 bytes inside of 256-byte region [ffff8881dc7ae000, ffff8881dc7ae100) The buggy address belongs to the page: page:ffffea000771eb80 count:1 mapcount:0 mapping:ffff8881f6c02e00 index:0x0 flags: 0x2fffc0000000200(slab) raw: 02fffc0000000200 ffffea0007d14800 0000000400000002 ffff8881f6c02e00 raw: 0000000000000000 00000000800c000c 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881dc7adf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8881dc7adf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8881dc7ae000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8881dc7ae080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8881dc7ae100: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 There are already cleanup handlings in serial_ir_init error path, no need to call serial_ir_exit do it again in serial_ir_init_module, otherwise will trigger a use-after-free issue. Fixes: fa5dc29c1fcc ("[media] lirc_serial: move out of staging and rename to serial_ir") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: rc: remove unused including <linux/version.h>YueHaibing1-1/+0
Remove including <linux/version.h> that don't need it. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: cx23885: check allocation returnNicholas Mc Guire1-2/+3
Checking of kmalloc() seems to have been committed - as cx23885_dvb_register() is checking for != 0 return, returning -ENOMEM should be fine here. While at it address the coccicheck suggestion to move to kmemdup rather than using kmalloc+memcpy. Fixes: 46b21bbaa8a8 ("[media] Add support for DViCO FusionHDTV DVB-T Dual Express2") Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: m88ds3103: serialize reset messages in m88ds3103_set_frontendJames Hutchinson1-5/+4
Ref: https://bugzilla.kernel.org/show_bug.cgi?id=199323 Users are experiencing problems with the DVBSky S960/S960C USB devices since the following commit: 9d659ae: ("locking/mutex: Add lock handoff to avoid starvation") The device malfunctions after running for an indeterminable period of time, and the problem can only be cleared by rebooting the machine. It is possible to encourage the problem to surface by blocking the signal to the LNB. Further debugging revealed the cause of the problem. In the following capture: - thread #1325 is running m88ds3103_set_frontend - thread #42 is running ts2020_stat_work a> [1325] usb 1-1: dvb_usb_v2_generic_io: >>> 08 68 02 07 80 [1325] usb 1-1: dvb_usb_v2_generic_io: <<< 08 [42] usb 1-1: dvb_usb_v2_generic_io: >>> 09 01 01 68 3f [42] usb 1-1: dvb_usb_v2_generic_io: <<< 08 ff [42] usb 1-1: dvb_usb_v2_generic_io: >>> 08 68 02 03 11 [42] usb 1-1: dvb_usb_v2_generic_io: <<< 07 [42] usb 1-1: dvb_usb_v2_generic_io: >>> 09 01 01 60 3d [42] usb 1-1: dvb_usb_v2_generic_io: <<< 07 ff b> [1325] usb 1-1: dvb_usb_v2_generic_io: >>> 08 68 02 07 00 [1325] usb 1-1: dvb_usb_v2_generic_io: <<< 07 [42] usb 1-1: dvb_usb_v2_generic_io: >>> 08 68 02 03 11 [42] usb 1-1: dvb_usb_v2_generic_io: <<< 07 [42] usb 1-1: dvb_usb_v2_generic_io: >>> 09 01 01 60 21 [42] usb 1-1: dvb_usb_v2_generic_io: <<< 07 ff [42] usb 1-1: dvb_usb_v2_generic_io: >>> 08 68 02 03 11 [42] usb 1-1: dvb_usb_v2_generic_io: <<< 07 [42] usb 1-1: dvb_usb_v2_generic_io: >>> 09 01 01 60 66 [42] usb 1-1: dvb_usb_v2_generic_io: <<< 07 ff [1325] usb 1-1: dvb_usb_v2_generic_io: >>> 08 68 02 03 11 [1325] usb 1-1: dvb_usb_v2_generic_io: <<< 07 [1325] usb 1-1: dvb_usb_v2_generic_io: >>> 08 60 02 10 0b [1325] usb 1-1: dvb_usb_v2_generic_io: <<< 07 Two i2c messages are sent to perform a reset in m88ds3103_set_frontend: a. 0x07, 0x80 b. 0x07, 0x00 However, as shown in the capture, the regmap mutex is being handed over to another thread (ts2020_stat_work) in between these two messages. >From here, the device responds to every i2c message with an 07 message, and will only return to normal operation following a power cycle. Use regmap_multi_reg_write to group the two reset messages, ensuring both are processed before the regmap mutex is unlocked. Signed-off-by: James Hutchinson <jahutchinson99@googlemail.com> Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: dvbsky: Avoid leaking dvb frontendStefan Brüns1-8/+10
Commit 14f4eaeddabc ("media: dvbsky: fix driver unregister logic") fixed a use-after-free by removing the reference to the frontend after deleting the backing i2c device. This has the unfortunate side effect the frontend device is never freed in the dvb core leaving a dangling device, leading to errors when the dvb core tries to register the frontend after e.g. a replug as reported here: https://www.spinics.net/lists/linux-media/msg138181.html media: dvbsky: issues with DVBSky T680CI === [ 561.119145] sp2 8-0040: CIMaX SP2 successfully attached [ 561.119161] usb 2-3: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)... [ 561.119174] sysfs: cannot create duplicate filename '/class/dvb/ dvb0.frontend0' === The use after free happened as dvb_usbv2_disconnect calls in this order: - dvb_usb_device::props->exit(...) - dvb_usbv2_adapter_frontend_exit(...) + if (fe) dvb_unregister_frontend(fe) + dvb_usb_device::props->frontend_detach(...) Moving the release of the i2c device from exit() to frontend_detach() avoids the dangling pointer access and allows the core to unregister the frontend. This was originally reported for a DVBSky T680CI, but it also affects the MyGica T230C. As all supported devices structure the registration/ unregistration identically, apply the change for all device types. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: wl128x: Fix an error code in fm_download_firmware()Dan Carpenter1-2/+3
We forgot to set "ret" on this error path. Fixes: e8454ff7b9a4 ("[media] drivers:media:radio: wl128x: FM Driver Common sources") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: staging: davinci: drop pointless static qualifier in vpfe_resizer_init()Mao Wenan1-1/+1
There is no need to have the 'T *v' variable static since new value always be assigned before use it. Signed-off-by: Mao Wenan <maowenan@huawei.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: staging: media: zoran: Fixes a checkpatch.pl error in videocodec.cclaudiojpaz1-1/+1
ERROR: do not initialise statics to NULL Signed-off-by: claudiojpaz <claudiojpaz@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: staging: davinci_vpfe: disallow building with COMPILE_TESTArnd Bergmann1-1/+1
The driver should really call dm365_isif_setup_pinmux() through a callback, but uses a hack to include a davinci specific machine header file when compile testing instead. This works almost everywhere, but not on the ARM omap1 platform, which has another header named mach/mux.h. This causes a build failure: drivers/staging/media/davinci_vpfe/dm365_isif.c:2028:2: error: implicit declaration of function 'davinci_cfg_reg' [-Werror,-Wimplicit-function-declaration] davinci_cfg_reg(DM365_VIN_CAM_WEN); ^ drivers/staging/media/davinci_vpfe/dm365_isif.c:2028:2: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes] drivers/staging/media/davinci_vpfe/dm365_isif.c:2028:18: error: use of undeclared identifier 'DM365_VIN_CAM_WEN' davinci_cfg_reg(DM365_VIN_CAM_WEN); ^ drivers/staging/media/davinci_vpfe/dm365_isif.c:2029:18: error: use of undeclared identifier 'DM365_VIN_CAM_VD' davinci_cfg_reg(DM365_VIN_CAM_VD); ^ drivers/staging/media/davinci_vpfe/dm365_isif.c:2030:18: error: use of undeclared identifier 'DM365_VIN_CAM_HD' davinci_cfg_reg(DM365_VIN_CAM_HD); ^ drivers/staging/media/davinci_vpfe/dm365_isif.c:2031:18: error: use of undeclared identifier 'DM365_VIN_YIN4_7_EN' davinci_cfg_reg(DM365_VIN_YIN4_7_EN); ^ drivers/staging/media/davinci_vpfe/dm365_isif.c:2032:18: error: use of undeclared identifier 'DM365_VIN_YIN0_3_EN' davinci_cfg_reg(DM365_VIN_YIN0_3_EN); ^ 7 errors generated. Exclude omap1 from compile-testing, under the assumption that all others still work. Fixes: 4907c73deefe ("media: staging: davinci_vpfe: allow building with COMPILE_TEST") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: i2c: adv748x: select V4L2_FWNODEArnd Bergmann1-0/+1
Building adv748x fails now unless V4L2_FWNODE is selected: drivers/media/i2c/adv748x/adv748x-core.o: In function `adv748x_probe': adv748x-core.c:(.text+0x1b2c): undefined reference to `v4l2_fwnode_endpoint_parse' Fixes: 6a18865da8e3 ("media: i2c: adv748x: store number of CSI-2 lanes described in device tree") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: imx: vdic: Fix wrong CSI group IDSteve Longerbeam1-1/+1
The i.MX7 capture support forgot to change the group ID for the CSI to the IPU CSI in VDIC sub-device, it was left at the i.MX7 CSI group ID. Fixes: 67673ed55084 ("media: staging/imx: rearrange group id to take in account IPU") Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: rockchip-vpu: Remove duplicated include from rockchip_vpu_drv.cYueHaibing1-1/+0
Remove duplicated include. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: strscpy() returns a negative value on failure unlike strlcpy().Hans Petter Selasky1-1/+1
strscpy() returns a negative value on failure unlike strlcpy(), so fix the WARN_ON accordingly. Signed-off-by: Hans Petter Selasky <hps@selasky.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: added commit message] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: vimc: stream: init/terminate the first entityHelen Fornazier1-10/+16
The s_stream callback was not being called for the first entity in the stream pipeline array. Instead of verifying the type of the node (video or subdevice) and calling s_stream from the second entity in the pipeline, do this process for all the entities in the pipeline for consistency. The previous code was not a problem because the first entity is a video device and not a subdevice, but this patch prepares vimc to allow setting some configuration in the entity before calling s_stream. Signed-off-by: Helen Koike <helen.koike@collabora.com> Tested-by: André Almeida <andre.almeida@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: fix line-too-long warning] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: vimc: stream: add docs to struct vimc_streamHelen Fornazier1-0/+15
Add missing documentation for struct vimc_stream Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: vimc: stream: cleanup frame field from struct vimc_streamHelen Fornazier2-7/+4
There is no need to have the frame field in the vimc_stream struct. Signed-off-by: Helen Koike <helen.koike@collabora.com> Tested-by: André Almeida <andre.almeida@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: vimc: cap: fix step width/height in enum framesizeHelen Fornazier1-2/+2
The type V4L2_FRMSIZE_TYPE_CONTINUOUS expects a step of 1. This fixes v4l2-compliance test error: fail: v4l2-test-formats.cpp(184): invalid step_width/height for continuous framesize test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: vimc: stream: fix thread state before sleepHelen Fornazier1-1/+1
The state TASK_UNINTERRUPTIBLE should be set just before schedule_timeout() call, so it knows the sleep mode it should enter. There is no point in setting TASK_UNINTERRUPTIBLE at the initialization of the thread as schedule_timeout() will set the state back to TASK_RUNNING. This fixes a warning in __might_sleep() call, as it's expecting the task to be in TASK_RUNNING state just before changing the state to a sleeping state. Reported-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: vimc: deb: fix default sink bayer formatHelen Fornazier1-1/+1
The format of the sink pad should be a bayer mbus format. This fixes a kernel NULL pointer dereference error that was caused when the stream starts because the configured format was not found in the pixelmap table. Reported-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: videobuf2: Return error after allocation failureSouptick Joarder1-5/+5
There is no point to continuing assignment after memory allocation failed, rather throw error immediately. Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: rebase and remove empty line before the if] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: gspca: do not resubmit URBs when streaming has stoppedHans Verkuil1-2/+6
When streaming is stopped all URBs are killed, but in fill_frame and in bulk_irq this results in an attempt to resubmit the killed URB. That is not what you want and causes spurious kernel messages. So check if streaming has stopped before resubmitting. Also check against gspca_dev->streaming rather than vb2_start_streaming_called() since vb2_start_streaming_called() will return true when in stop_streaming, but gspca_dev->streaming is set to false when stop_streaming is called. Fixes: 6992effe5344 ("gspca: Kill all URBs before releasing any of them") Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: au0828: minor fix to a misleading comment in _close()Shuah Khan1-2/+2
Fix a misleading comment in _close() and a spelling error. Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Shuah Khan <shuah@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: replace WARN_ON in __media_pipeline_start()Shuah Khan1-1/+4
__media_pipeline_start() does WARN_ON() when active pipe doesn't match the input arg entity's pipe. Replace WARN_ON with a conditional and error message that includes names of both entities. Signed-off-by: Shuah Khan <shuah@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: vicodec: avoid clang frame size warningArnd Bergmann1-11/+18
Clang-9 makes some different inlining decisions compared to gcc, which leads to a warning about a possible stack overflow problem when building with CONFIG_KASAN, including when setting asan-stack=0, which avoids most other frame overflow warnings: drivers/media/platform/vicodec/codec-fwht.c:673:12: error: stack frame size of 2224 bytes in function 'encode_plane' Manually adding noinline_for_stack annotations in those functions called by encode_plane() or decode_plane() that require a significant amount of kernel stack makes this impossible to happen with any compiler. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: cx18: update *pos correctly in cx18_read_pos()Dan Carpenter1-1/+1
We should be updating *pos. The current code is a no-op. Fixes: 1c1e45d17b66 ("V4L/DVB (7786): cx18: new driver for the Conexant CX23418 MPEG encoder chip") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: ivtv: update *pos correctly in ivtv_read_pos()Dan Carpenter1-1/+1
We had intended to update *pos, but the current code is a no-op. Fixes: 1a0adaf37c30 ("V4L/DVB (5345): ivtv driver for Conexant cx23416/cx23415 MPEG encoder/decoder") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: go7007: avoid clang frame overflow warning with KASANArnd Bergmann1-2/+2
clang-8 warns about one function here when KASAN is enabled, even without the 'asan-stack' option: drivers/media/usb/go7007/go7007-fw.c:1551:5: warning: stack frame size of 2656 bytes in function I have reported this issue in the llvm bugzilla, but to make it work with the clang-8 release, a small annotation is still needed. Link: https://bugs.llvm.org/show_bug.cgi?id=38809 Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: fix checkpatch warning] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: saa7146: avoid high stack usage with clangArnd Bergmann2-6/+4
Two saa7146/hexium files contain a construct that causes a warning when built with clang: drivers/media/pci/saa7146/hexium_orion.c:210:12: error: stack frame size of 2272 bytes in function 'hexium_probe' [-Werror,-Wframe-larger-than=] static int hexium_probe(struct saa7146_dev *dev) ^ drivers/media/pci/saa7146/hexium_gemini.c:257:12: error: stack frame size of 2304 bytes in function 'hexium_attach' [-Werror,-Wframe-larger-than=] static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info) ^ This one happens regardless of KASAN, and the problem is that a constructor to initialize a dynamically allocated structure leads to a copy of that structure on the stack, whereas gcc initializes it in place. Link: https://bugs.llvm.org/show_bug.cgi?id=40776 Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: fix checkpatch warnings] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: atmel-isc: Add support for BT656 with CRC decodingKen Sloat2-1/+8
The ISC driver currently supports ITU-R 601 encoding which utilizes the external hsync and vsync signals. ITU-R 656 format removes the need for these pins by embedding the sync pulses within the data packet. To support this feature, enable necessary register bits when this feature is enabled via device tree. Signed-off-by: Ken Sloat <ksloat@aampglobal.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: cedrus: Add support for H6Jernej Skrabec1-0/+9
H6 has improved VPU. It supports 10-bit HEVC decoding and AFBC output format for HEVC. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: cedrus: Add a quirk for not setting DMA offsetJernej Skrabec2-1/+5
H6 VPU doesn't work if DMA offset is set. Add a quirk for it. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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