kernel/linux.git/drivers/video, branch v3.18.100

video: fbdev/mmp: add MODULE_LICENSE

2018-02-25T10:01:18+00:00

commit c1530ac5a3ce93a1f02adabc4508b5fbf862dfe2 upstream. Kbuild complains about the lack of a license tag in this driver: WARNING: modpost: missing MODULE_LICENSE() in drivers/video/fbdev/mmp/mmp_disp.o This adds the license, author and description tags. Signed-off-by: Arnd Bergmann Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Greg Kroah-Hartman

console/dummy: leave .con_font_get set to NULL

2018-02-25T10:01:16+00:00

commit 724ba8b30b044aa0d94b1cd374fc15806cdd6f18 upstream. When this method is set, the caller expects struct console_font fields to be properly initialized when it returns. Leave it unset otherwise nonsensical (leaked kernel stack) values are returned to user space. Signed-off-by: Nicolas Pitre Cc: stable@vger.kernel.org Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Greg Kroah-Hartman

video: fbdev: atmel_lcdfb: fix display-timings lookup

2018-02-25T10:01:16+00:00

commit 9cb18db0701f6b74f0c45c23ad767b3ebebe37f6 upstream. Fix child-node lookup during probe, which ended up searching the whole device tree depth-first starting at the parent rather than just matching on its children. To make things worse, the parent display node was also prematurely freed. Note that the display and timings node references are never put after a successful dt-initialisation so the nodes would leak on later probe deferrals and on driver unbind. Fixes: b985172b328a ("video: atmel_lcdfb: add device tree suport") Cc: stable # 3.13 Cc: Jean-Christophe PLAGNIOL-VILLARD Cc: Nicolas Ferre Cc: Alexandre Belloni Signed-off-by: Johan Hovold Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Greg Kroah-Hartman

backlight: pwm_bl: Fix overflow condition

2017-12-25T13:20:08+00:00

[ Upstream commit 5d0c49acebc9488e37db95f1d4a55644e545ffe7 ] This fixes an overflow condition that can happen with high max brightness and period values in compute_duty_cycle. This fixes it by using a 64 bit variable for computing the duty cycle. Signed-off-by: Derek Basehore Acked-by: Thierry Reding Reviewed-by: Brian Norris Signed-off-by: Lee Jones Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

video: fbdev: au1200fb: Return an error code if a memory allocation fails

2017-12-20T09:01:32+00:00

[ Upstream commit 8cae353e6b01ac3f18097f631cdbceb5ff28c7f3 ] 'ret' is known to be 0 at this point. In case of memory allocation error in 'framebuffer_alloc()', return -ENOMEM instead. Signed-off-by: Christophe JAILLET Cc: Tejun Heo Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

video: fbdev: au1200fb: Release some resources if a memory allocation fails

2017-12-20T09:01:32+00:00

[ Upstream commit 451f130602619a17c8883dd0b71b11624faffd51 ] We should go through the error handling code instead of returning -ENOMEM directly. Signed-off-by: Christophe JAILLET Cc: Tejun Heo Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

video: udlfb: Fix read EDID timeout

2017-12-20T09:01:31+00:00

[ Upstream commit c98769475575c8a585f5b3952f4b5f90266f699b ] While usb_control_msg function expects timeout in miliseconds, a value of HZ is used. Replace it with USB_CTRL_GET_TIMEOUT and also fix error message which looks like: udlfb: Read EDID byte 78 failed err ffffff92 as error is either negative errno or number of bytes transferred use %d format specifier. Returned EDID is in second byte, so return error when less than two bytes are received. Fixes: 18dffdf8913a ("staging: udlfb: enhance EDID and mode handling support") Signed-off-by: Ladislav Michl Cc: Bernie Thompson Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

fbdev: controlfb: Add missing modes to fix out of bounds access

2017-12-20T09:01:31+00:00

[ Upstream commit ac831a379d34109451b3c41a44a20ee10ecb615f ] Dan's static analysis says: drivers/video/fbdev/controlfb.c:560 control_setup() error: buffer overflow 'control_mac_modes' 20 <= 21 Indeed, control_mac_modes[] has only 20 elements, while VMODE_MAX is 22, which may lead to an out of bounds read when parsing vmode commandline options. The bug was introduced in v2.4.5.6, when 2 new modes were added to macmodes.h, but control_mac_modes[] wasn't updated: https://kernel.opensuse.org/cgit/kernel/diff/include/video/macmodes.h?h=v2.5.2&id=29f279c764808560eaceb88fef36cbc35c529aad Augment control_mac_modes[] with the two new video modes to fix this. Reported-by: Dan Carpenter Signed-off-by: Geert Uytterhoeven Cc: Dan Carpenter Cc: Benjamin Herrenschmidt Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

backlight: adp5520: Fix error handling in adp5520_bl_probe()

2017-11-21T08:01:06+00:00

[ Upstream commit 0eb3fba8c68275f0122f65f7316efaaf86448016 ] If adp5520_bl_setup() fails, sysfs group left unremoved. By the way, fix overcomplicated assignement of error code. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Acked-by: Michael Hennerich Signed-off-by: Lee Jones Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

backlight: lcd: Fix race condition during register

2017-11-21T08:01:06+00:00

[ Upstream commit cc21942bce652d1a92dae85b785378256e1df1f7 ] Once device_register is called for a device its attributes might be accessed. As the callbacks of a lcd device's attributes make use of the lcd_ops, the respective member must be setup before calling device_register. Signed-off-by: Uwe Kleine-König Signed-off-by: Lee Jones Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman