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* Merge tag 'pm-for-3.6-rc1' of ↵Linus Torvalds2012-07-2214-87/+97
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: - ACPI conversion to PM handling based on struct dev_pm_ops. - Conversion of a number of platform drivers to PM handling based on struct dev_pm_ops and removal of empty legacy PM callbacks from a couple of PCI drivers. - Suspend-to-both for in-kernel hibernation from Bojan Smojver. - cpuidle fixes and cleanups from ShuoX Liu, Daniel Lezcano and Preeti Murthy. - cpufreq bug fixes from Jonghwa Lee and Stephen Boyd. - Suspend and hibernate fixes from Srivatsa Bhat and Colin Cross. - Generic PM domains framework updates. - RTC CMOS wakeup signaling update from Paul Fox. - sparse warnings fixes from Sachin Kamat. - Build warnings fixes for the generic PM domains framework and PM sysfs code. - sysfs switch for printing device suspend times from Sameer Nanda. - Documentation fix from Oskar Schirmer. * tag 'pm-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (70 commits) cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency switch EXYNOS: bugfix on retrieving old_index from freqs.old PM / Sleep: call early resume handlers when suspend_noirq fails PM / QoS: Use NULL pointer instead of plain integer in qos.c PM / QoS: Use NULL pointer instead of plain integer in pm_qos.h PM / Sleep: Require CAP_BLOCK_SUSPEND to use wake_lock/wake_unlock PM / Sleep: Add missing static storage class specifiers in main.c cpuilde / ACPI: remove time from acpi_processor_cx structure cpuidle / ACPI: remove usage from acpi_processor_cx structure cpuidle / ACPI : remove latency_ticks from acpi_processor_cx structure rtc-cmos: report wakeups from interrupt handler PM / Sleep: Fix build warning in sysfs.c for CONFIG_PM_SLEEP unset PM / Domains: Fix build warning for CONFIG_PM_RUNTIME unset olpc-xo15-sci: Use struct dev_pm_ops for power management PM / Domains: Replace plain integer with NULL pointer in domain.c file PM / Domains: Add missing static storage class specifier in domain.c file PM / crypto / ux500: Use struct dev_pm_ops for power management PM / IPMI: Remove empty legacy PCI PM callbacks tpm_nsc: Use struct dev_pm_ops for power management tpm_tis: Use struct dev_pm_ops for power management ...
| * Merge branch 'pm-drivers'Rafael J. Wysocki2012-07-196-45/+34
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-drivers: rtc-cmos: report wakeups from interrupt handler PM / crypto / ux500: Use struct dev_pm_ops for power management PM / IPMI: Remove empty legacy PCI PM callbacks tpm_nsc: Use struct dev_pm_ops for power management tpm_tis: Use struct dev_pm_ops for power management tpm_atmel: Use struct dev_pm_ops for power management PM / TPM: Drop unused pm_message_t argument from tpm_pm_suspend() omap-rng: Use struct dev_pm_ops for power management mg_disk: Use struct dev_pm_ops for power management msi-laptop: Use struct dev_pm_ops for power management hdaps: Use struct dev_pm_ops for power management sonypi: Use struct dev_pm_ops for power management intel_mid_thermal: Use struct dev_pm_ops for power management acer-wmi: Use struct dev_pm_ops for power management intel_ips: Remove empty legacy PM callbacks thinkpad_acpi: Use struct dev_pm_ops instead of legacy PM routines thinkpad_acpi: Drop pm_message_t arguments from suspend routines
| | * msi-laptop: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-061-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make the msi-laptop driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct platform_driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Lee, Chun-Yi <jlee@suse.com>
| | * hdaps: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-031-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | Make the HDAPS driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct platform_driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| | * intel_mid_thermal: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make the intel_mid_thermal driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct platform_driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Durgadoss R <durgadoss.r@intel.com>
| | * acer-wmi: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the acer-wmi driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct platform_driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Tested-by: Lee, Chun-Yi <jlee@suse.com> Acked-by: Matthew Garrett <mjg@redhat.com>
| | * intel_ips: Remove empty legacy PM callbacksRafael J. Wysocki2012-07-011-17/+0
| | | | | | | | | | | | | | | | | | | | | | | | The legacy PM callbacks provided by the Intel IPS driver are empty routines returning 0, so they can be safely dropped. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| | * thinkpad_acpi: Use struct dev_pm_ops instead of legacy PM routinesRafael J. Wysocki2012-07-011-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the thinkpad_acpi driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct platform_driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: Matthew Garrett <mjg@redhat.com>
| | * thinkpad_acpi: Drop pm_message_t arguments from suspend routinesRafael J. Wysocki2012-07-011-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Multiple suspend routines in drivers/platform/x86/thinkpad_acpi.c use take pm_message_t arguments that aren't used by any of them. Make those routines take no arguments as that's what they should do. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: Matthew Garrett <mjg@redhat.com>
| * | fujitsu-tablet: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | Make the fujitsu-tablet driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | classmate-laptop: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make the classmate-laptop driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
| * | xo15-ebook: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | Make the xo15-ebook driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | toshiba_bluetooth: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make the toshiba_bluetooth driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Vikram Dhillon <opensolarisdev@gmail.com>
| * | panasonic-laptop: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | Make the panasonic-laptop driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | sony-laptop: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-8/+12
| | | | | | | | | | | | | | | | | | | | | | | | Make the sony-laptop driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | hp_accel: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make the hp_accel driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Éric Piel <eric.piel@tremplin-utc.net>
| * | toshiba_acpi: Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-011-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | Make the toshiba_acpi driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | ACPI / PM: Drop pm_message_t argument from device suspend callbackRafael J. Wysocki2012-07-013-4/+3
| |/ | | | | | | | | | | | | | | | | None of the drivers implementing the ACPI device suspend callback uses the pm_message_t argument of it, so this argument may be dropped entirely from that callback. This will simplify switching the ACPI bus type to PM handling based on struct dev_pm_ops. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
* | intel_ips: blacklist HP ProBook laptopsTakashi Iwai2012-06-261-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | intel_ips driver spews the warning message "ME failed to update for more than 1s, likely hung" at each second endlessly on HP ProBook laptops with IronLake. As this has never worked, better to blacklist the driver for now. Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | ideapad: uninitialized data in ideapad_acpi_add()Dan Carpenter2012-06-261-3/+3
| | | | | | | | | | | | | | | | | | We only initialize the high bits of "cfg". It probably doesn't cause a problem given that this is platform specific code and doesn't have to worry about endianness etc. But it's sort of messy. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: correct find_snc_handle failure checksMattia Dongili2012-06-261-3/+3
| | | | | | | | | | | | | | | | Since bab7084c745bf4d75b760728387f375fd34dc683, find_snc_handle returns -EINVAL, not -1. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: fix a couple signedness bugsDan Carpenter2012-06-261-3/+1
| | | | | | | | | | | | | | | | | | | | This needs to be signed to handle negative error codes. Remove a redundant check, read_limits is always called with a valid handle. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: fix sony_nc_sysfs_store()Dan Carpenter2012-06-261-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | We made this an unsigned long and it causes a bug on 64 bit big endian systems when we try to pass the value to sony_nc_int_call(). Also value has to be signed because validate() returns negative error codes. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: input initialization should be done before SNCMattia Dongili2012-06-261-13/+12
| | | | | | | | | | | | | | | | SNC needs input devices so better have those ready before starting handle events. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: add lid backlight support for handle 0x143Mattia Dongili2012-06-261-3/+24
| | | | | | | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: store battery care limits on batteriesMattia Dongili2012-06-261-20/+21
| | | | | | | | | | | | | | | | Some models offer the option to store the limits on the battery (firmware?). Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: notify userspace of GFX switch position changesMarco Chiappero2012-06-261-1/+20
| | | | | | | | | | | | | | | | | | | | Some Vaios come with both integrated and discrete graphics, plus a switch for choosing one of the two. When the switch position is changed, a notification is generated. Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | sony-laptop: use an enum for SNC event typesMattia Dongili2012-06-261-3/+7
|/ | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* drivers/platform/x86/acerhdf.c: correct Boris' mail addressBorislav Petkov2012-06-071-1/+1
| | | | | | | | | Correct mail address reference to a mail account which I actually read. Signed-off-by: Borislav Petkov <bp@alien8.de> Cc: Peter Feuerer <peter@piie.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* apple-gmux: Fix up the suspend/resume patchMatthew Garrett2012-06-011-1/+1
| | | | | | | | I incorporated the wrong version of the suspend/resume patch for gmux, and so lost David Woodhouse's fix to leave the backlight level unchanged over suspend/resume. This fixes it up to v2. Signed-off-by: Matthew Garrett <mjg@redhat.com>
* dell-laptop: Remove rfkill codeMatthew Garrett2012-06-011-289/+0
| | | | | | | | | The interface just doesn't work on some machines, and Dell haven't been able to tell us either which machines those are or what we should be doing instead. This would be fine, except it results in userspace ending up confused and general sadness. So let's just rip it out for now. Signed-off-by: Matthew Garrett <mjg@redhat.com>
* toshiba_acpi: Fix mis-mergeMatthew Garrett2012-06-011-1/+1
| | | | | | | I managed to screw up the various backlight changes and ended up memsetting the props structure after it had already been populated. This should fix it. Signed-off-by: Matthew Garrett <mjg@redhat.com>
* dell-laptop: Add touchpad led support for Dell V3450AceLan Kao2012-05-311-0/+9
| | | | | | | | Add Dell Vostro 3450 quirk to support touchpad LED. CC: Mariusz Fik <fisiu@opensuse.org> Signed-off-by: AceLan Kao <acelan.kao@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* acer-wmi: add 3 laptops to video backlight vendor mode quirk tableLee, Chun-Yi2012-05-311-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | Acer Extensa 5235, TravelMate 5760 and Aspire 5750 laptop have broken _BCM implemenation, the AML code wrote value to EC register but firmware didn't change brighenss. Fortunately, the brightness control works on those machines with vendor mode. So, add this machine to video backlight vendor mode quirk table. Reference: bko#36322 https://bugzilla.kernel.org/show_bug.cgi?id=36322 Reference: bko#42833 https://bugzilla.kernel.org/show_bug.cgi?id=42833 Reference: bko#42993 https://bugzilla.kernel.org/show_bug.cgi?id=42993 Cc: Christopher M. Penalver <christopher.penalver@gmx.com> Cc: Bence Lukacs <lukacs.bence1@gmail.com> Cc: Joern Heissler <kernelbugs2012@joern.heissler.de> Cc: Carlos Corbacho <carlos@strangeworlds.co.uk> Cc: Matthew Garrett <mjg@redhat.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Corentin Chary <corentincj@iksaif.net> Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Lee, Chun-Yi <jlee@suse.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add touchpad enable/disable functionMarco Chiappero2012-05-311-0/+91
| | | | | | | | | | | This setting is stored in the EC and available across reboots. [malattia@linux.it: group function specific variables in a struct, use kstrtoul] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add missing Fn key combos for 0x100 handlersMarco Chiappero2012-05-311-0/+4
| | | | | | Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add support for more WWAN modemsMarco Chiappero2012-05-311-19/+34
| | | | | | | | | Also make the initialization function return a value for consistency with all the other setup functions. Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: new keyboard backlight handleMarco Chiappero2012-05-311-62/+87
| | | | | | | | | | | | Add support for handle 0x0143 (Vaio SA/SB/SC, CA/CB) and rework the code to be hable to support different handles for the keyboard backlight function. [malattia@linux.it: group function specific variables in a struct] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add high speed battery charging functionMarco Chiappero2012-05-311-0/+86
| | | | | | Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: support automatic resume on lid openMarco Chiappero2012-05-311-0/+140
| | | | | | | | | | | | | | | A few models offer the chance to set whether to resume from S3 and/or S4 when opening the lid. [malattia@linux.it: create three sysfs files for S3/4/5 rather than using a single one accepting a bitmask. Support S5 since the DSDT exports it. Use a struct to hold all the related values, caching of the current status value rather than re-reading all the time in the sysfs show function.] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: adjust error handling in finding SNC handlesMattia Dongili2012-05-311-4/+4
| | | | | | | | All handles must be greater than 0, also return more meaningful error codes on invalid conditions. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: add thermal profiles supportMarco Chiappero2012-05-311-0/+183
| | | | | | | | [malattia@linux.it: support string based profiles names] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: support battery care functionsMarco Chiappero2012-05-311-0/+178
| | | | | | | | | | | | | Allows limiting the maximum battery charge level to a selectable value (100%, 80% and 50%). [malattia@linux.it: group function specific variables in a struct, use kstrtoul. Allow 0 to 100 values into sysfs files rounding to the actual limit.] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: additional debug statementsMattia Dongili2012-05-311-1/+6
| | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: improve SNC initialization and acpi notify callback codeMarco Chiappero2012-05-311-86/+233
| | | | | | | | | | | | | | | | | | Loop through the list of SNC handles and run the proper initialization function for each of the known handles. Also return void in function where we are not checking the return value anyway. For notifications we also know which handle is linked to the event and the code becomes simpler to read with a switch rather than using convoluted ifs. [malattia@linux.it: Code reworked to merge the initialization code improvements and the notify callback changes. Modified the code paths to allow easier error exit paths. Also fixed some missing break statements and spelling mistakes.] Signed-off-by: Marco Chiappero <marco@absence.it> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: use kstrtoul to parse sysfs valuesMattia Dongili2012-05-311-9/+17
| | | | | | | | This avoids surprises like echoing "enable" into a sysfs file and finding that the feature was actually disabled. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: generalise ACPI calls into SNC functionsMattia Dongili2012-05-311-142/+133
| | | | | | | | | | | All calls into the SNC device methods have zero or one arguments and return an integer or a buffer (some functions go as far as returning an integer _or_ a buffer depending on the input parameter...). This allows simplifying a couple of code paths and prepares the field for other users of functions returning buffers. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: fix return path when no ACPI buffer is allocatedMattia Dongili2012-05-311-2/+2
| | | | | | | | The goto target location would still try to free a buffer that was never allocated. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* sony-laptop: use soft rfkill status stored in hwMarco Chiappero2012-05-311-4/+17
| | | | | | | | | | | | The SNC device on recent Vaio laptops also stores the soft status and leaves it available after reboot. Use it and always set the last soft and hard status on module load. [malattia@linux.it: patch taken from a largely modified sony-laptop.c, smaller modifications to the original code to simplify it] Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* hp-wmi: check for allocation failuresDan Carpenter2012-05-311-0/+10
| | | | | | | | rfkill_alloc() returns NULL on failure. Check for it, to make the static checkers happy. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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