android_kernel_motorola_sm6375/drivers/base
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Rafael J. Wysocki 098dff738a PM: Fix potential issue with failing asynchronous suspend
There is a potential issue with the asynchronous suspend code that
a device driver suspending asynchronously may not notice that it
should back off.  There are two failing scenarions, (1) when the
driver is waiting for a driver suspending synchronously to complete
and that second driver returns error code, in which case async_error
won't be set and the waiting driver will continue suspending and (2)
after the driver has called device_pm_wait_for_dev() and the waited
for driver returns error code, in which case the caller of
device_pm_wait_for_dev() will not know that there was an error and
will continue suspending.

To fix this issue make __device_suspend() set async_error, so
async_suspend() doesn't need to set it any more, and make
device_pm_wait_for_dev() return async_error, so that its callers
can check whether or not they should continue suspending.

No more changes are necessary, since device_pm_wait_for_dev() is
not used by any drivers' suspend routines.

Reported-by: Colin Cross <ccross@android.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-17 01:57:43 +02:00
..
power PM: Fix potential issue with failing asynchronous suspend 2010-10-17 01:57:43 +02:00
attribute_container.c
base.h
bus.c driver core: fix memory leak on one error path in bus_register() 2010-08-05 13:53:35 -07:00
class.c kobj: Add basic infrastructure for dealing with namespaces. 2010-05-21 09:37:31 -07:00
core.c driver core: device_rename's new_name can be const 2010-08-05 13:53:35 -07:00
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
devtmpfs.c devtmpfs: support !CONFIG_TMPFS 2010-05-21 09:37:30 -07:00
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
driver.c
firmware.c
firmware_class.c firmware_class: fix typo in error path 2010-08-23 18:12:46 -07:00
hypervisor.c
init.c
iommu.c
isa.c
Kconfig devtmpfs: support !CONFIG_TMPFS 2010-05-21 09:37:30 -07:00
Makefile
map.c
memory.c
module.c driver core: module.c: Use kasprintf 2010-05-21 09:37:29 -07:00
node.c drivers/base/node.c: reduce stack usage of node_read_meminfo() 2010-08-09 20:45:02 -07:00
platform.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2010-08-06 11:36:30 -07:00
sys.c
topology.c topology: convert cpu notifier to return encapsulate errno value 2010-05-27 09:12:48 -07:00
transport_class.c