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e866500247
linux/drivers/base
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Rafael J. Wysocki e866500247 PM: Allow pm_runtime_suspend() to succeed during system suspend 
The dpm_prepare() function increments the runtime PM reference
counters of all devices to prevent pm_runtime_suspend() from
executing subsystem-level callbacks.  However, this was supposed to
guard against a specific race condition that cannot happen, because
the power management workqueue is freezable, so pm_runtime_suspend()
can only be called synchronously during system suspend and we can
rely on subsystems and device drivers to avoid doing that
unnecessarily.

Make dpm_prepare() drop the runtime PM reference to each device
after making sure that runtime resume is not pending for it.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Kevin Hilman <khilman@ti.com>
2011-03-15 00:43:16 +01:00
..
power PM: Allow pm_runtime_suspend() to succeed during system suspend 2011-03-15 00:43:16 +01:00
attribute_container.c [SCSI] attirbute_container: Initialize sysfs attributes with sysfs_attr_init 2010-03-27 15:15:24 -04:00
base.h driver-core: merge private parts of class and bus 2010-11-17 14:21:08 -08:00
bus.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-01-13 10:05:56 -08:00
class.c driver-core: merge private parts of class and bus 2010-11-17 14:21:08 -08:00
core.c Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2011-01-10 16:10:33 -08:00
cpu.c drivers/base/cpu.c: fix the output from /sys/devices/system/cpu/offline 2010-05-21 09:37:28 -07:00
dd.c Driver core: Add BUS_NOTIFY_BIND_DRIVER 2010-08-05 13:53:35 -07:00
devres.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
devtmpfs.c convert get_sb_single() users 2010-10-29 04:16:28 -04:00
dma-coherent.c Driver core: internal struct dma_coherent_mem, change type of a member. 2010-08-05 13:53:33 -07:00
dma-mapping.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
driver.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
firmware_class.c firmware_class: fix typo in error path 2010-08-23 18:12:46 -07:00
firmware.c firmware: change firmware_kset to firmware_kobj 2008-01-24 20:40:23 -08:00
hypervisor.c
init.c Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev 2009-09-15 09:50:49 -07:00
iommu.c iommu-api: Remove iommu_{un}map_range functions 2010-03-07 18:01:13 +01:00
isa.c dma-mapping: replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24) 2009-04-07 08:31:12 -07:00
Kconfig kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
Makefile driver-core: base: change to new flag variable 2010-10-22 10:16:44 -07:00
map.c
memory.c Driver core: Add section count to memory_block struct 2010-10-22 10:16:44 -07:00
module.c driver core: module.c: Use kasprintf 2010-05-21 09:37:29 -07:00
node.c thp: transparent hugepage sysfs meminfo 2011-01-13 17:32:46 -08:00
platform.c Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-10-25 08:19:14 -07:00
sys.c driver core: Display error codes when class suspend fails 2010-10-22 10:16:44 -07:00
topology.c topology/sysfs: Provide book id and siblings attributes 2010-09-09 20:41:25 +02:00
transport_class.c SCSI: convert struct class_device to struct device 2008-04-19 19:10:33 -07:00