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2009-09-28ARM: Fix section mismatch warning in Integrator pci_v3Russell King1-1/+1
WARNING: vmlinux.o(.text+0xc9d4): Section mismatch in reference from the function pci_v3_scan_bus() to the function .devinit.text:pci_scan_bus_parented() The function pci_v3_scan_bus() references the function __devinit pci_scan_bus_parented(). This is often because pci_v3_scan_bus lacks a __devinit annotation or the annotation of pci_scan_bus_parented is wrong. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixesLinus Torvalds3-6/+9
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes: alpha: fix build after vmlinux.lds.S cleanup mips: fix build of vmlinux.lds
2009-09-26Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-ledsLinus Torvalds11-31/+414
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds: leds: move leds-clevo-mail's probe function to .devinit.text leds: Fix indentation in LEDS_LP3944 Kconfig entry leds: Fix LED names leds: Fix leds-pca9532 whitespace issues leds: fix coding style in worker thread code for ledtrig-gpio. leds: gpio-leds: fix typographics fault leds: Add WM831x status LED driver
2009-09-26Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlightLinus Torvalds13-2/+1203
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight: backlight: new driver for ADP5520/ADP5501 MFD PMICs backlight: extend event support to also support poll() backlight/eeepc-laptop: Update the backlight state when we change brightness backlight/acpi: Update the backlight state when we change brightness backlight: Allow drivers to update the core, and generate events on changes backlight: switch to da903x driver to dev_pm_ops backlight: Add support for the Avionic Design Xanthos backlight device. backlight: spi driver for LMS283GF05 LCD backlight: move hp680-bl's probe function to .devinit.text backlight: Add support for new Apple machines. backlight: mbp_nvidia_bl: add support for MacBookAir 1,1 backlight: Add WM831x backlight driver Trivial conflicts due to '#ifdef CONFIG_PM' differences in drivers/video/backlight/da903x_bl.c
2009-09-26headers: kref.h reduxAlexey Dobriyan9-10/+0
* remove asm/atomic.h inclusion from kref.h -- not needed, linux/types.h is enough for atomic_t * remove linux/kref.h inclusion from files which do not need it. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-26Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds1-61/+76
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: Add memory barrier commentary to futex_wait_queue_me() futex: Fix wakeup race by setting TASK_INTERRUPTIBLE before queue_me() futex: Correct futex_q woken state commentary futex: Make function kernel-doc commentary consistent futex: Correct queue_me and unqueue_me commentary futex: Correct futex_wait_requeue_pi() commentary
2009-09-26Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds8-69/+119
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf tools: Dont use openat() perf tools: Fix buffer allocation perf tools: .gitignore += perf*.html perf tools: Handle relative paths while loading module symbols perf tools: Fix module symbol loading bug perf_event, x86: Fix 'perf sched record' crashing the machine perf_event: Update PERF_EVENT_FORK header definition perf stat: Fix zero total printouts
2009-09-26Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds1-4/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: clocksource: Resume clocksource without taking the clocksource mutex
2009-09-26Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds6-19/+20
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: modules, tracing: Remove stale struct marker signature from module_layout() tracing/workqueue: Use %pf in workqueue trace events tracing: Fix a comment and a trivial format issue in tracepoint.h tracing: Fix failure path in ftrace_regex_open() tracing: Fix failure path in ftrace_graph_write() tracing: Check the return value of trace_get_user() tracing: Fix off-by-one in trace_get_user()
2009-09-26Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds19-188/+180
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Remove redundant non-NUMA topology functions x86: early_printk: Protect against using the same device twice x86: Reduce verbosity of "PAT enabled" kernel message x86: Reduce verbosity of "TSC is reliable" message x86: mce: Use safer ways to access MCE registers x86: mce, inject: Use real inject-msg in raise_local x86: mce: Fix thermal throttling message storm x86: mce: Clean up thermal throttling state tracking code x86: split NX setup into separate file to limit unstack-protected code xen: check EFER for NX before setting up GDT mapping x86: Cleanup linker script using new linker script macros. x86: Use section .data.page_aligned for the idt_table. x86: convert to use __HEAD and HEAD_TEXT macros. x86: convert compressed loader to use __HEAD and HEAD_TEXT macros. x86: fix fragile computation of vsyscall address
2009-09-26Merge branch 'release' of ↵Linus Torvalds8-713/+770
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (32 commits) ACPI: i2c-scmi: don't use acpi_device_uid() ACPI: simplify building device HID/CID list ACPI: remove acpi_device_uid() and related stuff ACPI: remove acpi_device.flags.hardware_id ACPI: remove acpi_device.flags.compatible_ids ACPI: maintain a single list of _HID and _CID IDs ACPI: make sure every acpi_device has an ID ACPI: use acpi_device_hid() when possible ACPI: fix synthetic HID for \_SB_ ACPI: handle re-enumeration, when acpi_devices might already exist ACPI: factor out device type and status checking ACPI: add acpi_bus_get_status_handle() ACPI: use acpi_walk_namespace() to enumerate devices ACPI: identify device tree root by null parent pointer, not ACPI_BUS_TYPE ACPI: enumerate namespace before adding functional fixed hardware devices ACPI: convert acpi_bus_scan() to operate on an acpi_handle ACPI: add acpi_bus_get_parent() and remove "parent" arguments ACPI: remove unnecessary argument checking ACPI: remove redundant "type" arguments ACPI: remove acpi_device_set_context() "type" argument ...
2009-09-26Merge branch 'writeback' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds3-4/+7
* 'writeback' of git://git.kernel.dk/linux-2.6-block: writeback: pass in super_block to bdi_start_writeback()
2009-09-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds11-258/+159
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: fix locking and list handling code in cifs_open and its helper [CIFS] Remove build warning cifs: fix problems with last two commits [CIFS] Fix build break when keys support turned off cifs: eliminate cifs_init_private cifs: convert oplock breaks to use slow_work facility (try #4) cifs: have cifsFileInfo hold an extra inode reference cifs: take read lock on GlobalSMBSes_lock in is_valid_oplock_break cifs: remove cifsInodeInfo.oplockPending flag cifs: fix oplock request handling in posix codepath [CIFS] Re-enable Lanman security
2009-09-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds4-152/+1299
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: at91_can: Forgotten git 'add' of at91_can.c TI Davinci EMAC: Fix in vector definition for EMAC_VERSION_2 ax25: Fix ax25_cb refcounting in ax25_ctl_ioctl virtio_net: Check for room in the vq before adding buffer virtio_net: avoid (most) NETDEV_TX_BUSY by stopping queue early. virtio_net: formalize skb_vnet_hdr virtio_net: don't free buffers in xmit ring virtio_net: return NETDEV_TX_BUSY instead of queueing an extra skb. virtio_net: skb_orphan() and nf_reset() in xmit path.
2009-09-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds1-2/+0
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: vio: Kill BUILD_BUG_ON() in vio_dring_avail(). Trivial conflict in arch/sparc/include/asm/vio.h due to David removing the whole messy BUG_ON that was confused.
2009-09-26make Linux bootable on ARM againNicolas Pitre1-0/+2
Commit 200b812d00 "Clear the exclusive monitor when returning from an exception" broke the vast majority of ARM systems in the wild which are still pre ARMv6. The kernel is crashing on the first occurrence of an exception due to the removal of the actual return instruction for them. Let's add it back. Signed-off-by: Nicolas Pitre <nico@marvell.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-26backlight: new driver for ADP5520/ADP5501 MFD PMICsMichael Hennerich3-0/+390
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-09-26backlight: extend event support to also support poll()Henrique de Moraes Holschuh1-0/+1
Extend the backlight event support to also allow the use of poll()/select() on actual_brightness. We already have the entire event hookup anyway, adding a single function call in one line to get functionality like that is a really good deal. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-09-26ACPI: i2c-scmi: don't use acpi_device_uid()Bjorn Helgaas1-3/+2
We recently removed the acpi_device_uid() interface because nobody used it. I don't think it's essential here either. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-26Merge branch 'thinkpad-2.6.32-part2' into releaseLen Brown2-227/+453
2009-09-26Merge branch 'bjorn-HID' into releaseLen Brown5-483/+315
2009-09-26writeback: pass in super_block to bdi_start_writeback()Jens Axboe3-4/+7
Sometimes we only want to write pages from a specific super_block, so allow that to be passed in. This fixes a problem with commit 56a131dcf7ed36c3c6e36bea448b674ea85ed5bb causing writeback on all super_blocks on a bdi, where we only really want to sync a specific sb from writeback_inodes_sb(). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-09-26at91_can: Forgotten git 'add' of at91_can.cDavid S. Miller1-0/+1186
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-26TI Davinci EMAC: Fix in vector definition for EMAC_VERSION_2Sriram1-1/+8
In the emac_poll function when looking for interrupt status masks correct definition must be chosen based on EMAC_VERSION(the bit mask has changed from version 1 to version 2). Signed-off-by: Sriram <srk@ti.com> Acked-by: Chaithrika U S <chaithrika@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-26ax25: Fix ax25_cb refcounting in ax25_ctl_ioctlJarek Poplawski1-10/+17
Use ax25_cb_put after ax25_find_cb in ax25_ctl_ioctl. Reported-by: Bernard Pidoux F6BVP <f6bvp@free.fr> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Reviewed-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-25ACPI: simplify building device HID/CID listBjorn Helgaas1-33/+23
Minor code cleanup, no functional change. Instead of remembering what HIDs & CIDs to add later, just add them immediately. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: remove acpi_device_uid() and related stuffBjorn Helgaas2-21/+1
Nobody uses acpi_device_uid(), so this patch removes it. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: remove acpi_device.flags.hardware_idBjorn Helgaas3-28/+15
Every acpi_device has at least one ID (if there's no _HID or _CID, we give it a synthetic or default ID). So there's no longer a need to check whether an ID exists; we can just use it. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: remove acpi_device.flags.compatible_idsBjorn Helgaas2-13/+5
We now keep a single list of IDs that includes both the _HID and any _CIDs. We no longer need to keep track of whether the device has a _CID. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: maintain a single list of _HID and _CID IDsBjorn Helgaas3-132/+60
There's no need to treat _HID and _CID differently. Keeping them in a single list makes code that uses the IDs a little simpler because it can just traverse the list rather than checking "do we have a HID?", "do we have any CIDs?" Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Reviewed-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: make sure every acpi_device has an IDBjorn Helgaas1-0/+10
This makes sure every acpi_device has at least one ID. If we build an acpi_device for a namespace node with no _HID or _CID, we sometimes synthesize an ID like "LNXCPU" or "LNXVIDEO". If we don't even have that, give it a default "device" ID. Note that this means things like: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/HWP0001:00/HWP0002:04/device:00 (a PCI slot SxFy device) will have "hid" and "modprobe" entries, where they didn't before. These aren't very useful (a HID of "device" doesn't tell you what *kind* of device it is, so it doesn't help find a driver), but I don't think they're harmful. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: use acpi_device_hid() when possibleBjorn Helgaas2-4/+4
Use acpi_device_hid() rather than accessing acpi_device.pnp.hardware_id directly. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: fix synthetic HID for \_SB_Bjorn Helgaas1-12/+6
This makes \_SB_ show up as /sys/devices/LNXSYSTM:00/LNXSYBUS:00 rather than "device:00". This has been broken for a loooong time (at least since 2.6.13) because device->parent is an acpi_device pointer, not a handle. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: handle re-enumeration, when acpi_devices might already existBjorn Helgaas1-8/+11
acpi_bus_scan() traverses the namespace to enumerate devices and uses acpi_add_single_object() to create acpi_devices. When the platform notifies us of a hot-plug event, we need to traverse part of the namespace again to figure out what appeared or disappeared. (We don't yet call acpi_bus_scan() during hot-plug, but I plan to do that in the future.) This patch makes acpi_add_single_object() notice when we already have an acpi_device, so we don't need to make a new one. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: factor out device type and status checkingBjorn Helgaas1-77/+52
This patch adds acpi_bus_type_and_status(), which determines the type of the object and whether we want to build an acpi_device for it. If it is acpi_device-worthy, it returns the type and the device's current status. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: add acpi_bus_get_status_handle()Bjorn Helgaas2-27/+24
Add acpi_bus_get_status_handle() so we can get the status of a namespace object before building a struct acpi_device. This removes a use of "device->flags.dynamic_status", a cached indicator of whether _STA exists. It seems simpler and more reliable to just evaluate _STA and catch AE_NOT_FOUND errors. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: use acpi_walk_namespace() to enumerate devicesBjorn Helgaas1-122/+74
acpi_bus_scan() currently walks the namespace manually. This patch changes it to use acpi_walk_namespace() instead. Besides removing some complicated code, this means we take advantage of the namespace locking done by acpi_walk_namespace(). The locking isn't so important at boot-time, but I hope to eventually use this same path to handle hot-addition of devices, when it will be important. Note that acpi_walk_namespace() does not actually visit the starting node first, so we need to do that by hand first. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: identify device tree root by null parent pointer, not ACPI_BUS_TYPEBjorn Helgaas2-8/+13
We can identify the root of the ACPI device tree by the fact that it has no parent. This is simpler than passing around ACPI_BUS_TYPE_SYSTEM and will help remove special treatment of the device tree root. Currently, we add the root by hand with ACPI_BUS_TYPE_SYSTEM. If we traverse the tree treating the root as just another device and use acpi_get_type(), the root shows up as ACPI_TYPE_DEVICE. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: enumerate namespace before adding functional fixed hardware devicesBjorn Helgaas1-2/+2
This patch changes the order so we enumerate in the "root, namespace, functional fixed" order instead of the "root, functional fixed, namespace" order. When I change acpi_bus_scan() to use acpi_walk_namespace(), it will use the former order, so this patch isolates the order change for bisectability. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: convert acpi_bus_scan() to operate on an acpi_handleBjorn Helgaas1-17/+17
This patch changes acpi_bus_scan() to take an acpi_handle rather than an acpi_device pointer. I plan to use acpi_bus_scan() in the hotplug path, and I'd rather not assume that notifications only go to nodes that already have acpi_devices. This will also help remove the special case for adding the root node. We currently add the root by hand before acpi_bus_scan(), but using a handle here means we can start the acpi_bus_scan() directly with the root even though it doesn't have an acpi_device yet. Note that acpi_bus_scan() currently adds and/or starts the *children* of its device argument. It doesn't do anything with the device itself. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: add acpi_bus_get_parent() and remove "parent" argumentsBjorn Helgaas1-13/+37
This patch adds acpi_bus_get_parent(), which ascends the namespace until it finds a parent with an acpi_device. Then we use acpi_bus_get_parent() in acpi_add_single_object(), so callers don't have to figure out or keep track of the parent acpi_device. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: remove unnecessary argument checkingBjorn Helgaas1-6/+2
acpi_add_single_object() is static, and all callers supply a valid "child" argument, so we don't need to check it. This patch also remove some unnecessary initializations. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: remove redundant "type" argumentsBjorn Helgaas1-7/+7
We now save the ACPI bus "device_type" in the acpi_device structure, so we don't need to pass it around explicitly anymore. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: remove acpi_device_set_context() "type" argumentBjorn Helgaas1-17/+15
We only pass the "type" to acpi_device_set_context() so we know whether the device has a handle to which we can attach the acpi_device pointer. But it's safer to just check for the handle directly, since it's in the acpi_device already. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: use device_type rather than comparing HIDBjorn Helgaas1-6/+4
Check the acpi_device device_type rather than the HID. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: save device_type in acpi_deviceBjorn Helgaas2-1/+3
Most uses of the ACPI bus device_type (ACPI_BUS_TYPE_DEVICE, ACPI_BUS_TYPE_POWER, etc) are during device initialization, but we do need it later for notify handler installation, since that is different for fixed hardware devices vs. namespace devices. This patch saves the device_type in the acpi_device structure, so we can check that rather than comparing against the _HID string. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: remove redundant "handle" and "parent" argumentsBjorn Helgaas1-15/+12
In several cases, functions take handle and parent device pointers in addition to acpi_device pointers. But the acpi_device structure contains both the handle and the parent pointer, so it's pointless and error-prone to pass them all. This patch removes the unnecessary "handle" and "parent" arguments. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: remove unused acpi_bus_scan_fixed() argumentBjorn Helgaas1-5/+2
We never use the "root" argument, so just remove it. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPI: add debug for device additionBjorn Helgaas1-2/+10
Add debug output for adding an ACPI device. Enable this with "acpi.debug_layer=0x00010000" (ACPI_BUS_COMPONENT). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25ACPICA: fixup after acpi_get_object_info() changeBjorn Helgaas1-1/+0
Commit 15b8dd53f5ffa changed info->hardware_id from a static array to a pointer. If hardware_id is non-NULL, it points to a NULL-terminated string, so we don't need to terminate it explicitly. However, it may be NULL; in that case, we *can't* add a NULL terminator. This causes a NULL pointer dereference oops for devices without _HID. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> CC: Lin Ming <ming.m.lin@intel.com> CC: Bob Moore <robert.moore@intel.com> CC: Gary Hade <garyhade@us.ibm.com> Signed-off-by: Len Brown <len.brown@intel.com>