Michal Kubecek 8440f4b194 PM: Free memory bitmaps if opening /dev/snapshot fails ...

When opening /dev/snapshot device, snapshot_open() creates memory
bitmaps which are freed in snapshot_release(). But if any of the
callbacks called by pm_notifier_call_chain() returns NOTIFY_BAD, open()
fails, snapshot_release() is never called and bitmaps are not freed.
Next attempt to open /dev/snapshot then triggers BUG_ON() check in
create_basic_memory_bitmaps(). This happens e.g. when vmwatchdog module
is active on s390x.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org

2011-06-21 23:20:06 +02:00

..

block_io.c

block: kill off REQ_UNPLUG

2011-03-10 08:52:27 +01:00

console.c

vt: introduce and use vt_kmsg_redirect() function

2009-12-15 08:53:28 -08:00

hibernate.c

PM / Hibernate: Update kerneldoc comments in hibernate.c

2011-05-24 23:36:06 +02:00

Kconfig

PM: Remove CONFIG_PM_VERBOSE

2011-05-17 23:25:10 +02:00

main.c

PM / Hibernate: Add sysfs knob to control size of memory for drivers

2011-05-17 23:19:19 +02:00

Makefile

kernel: change to new flag variable

2011-03-17 14:02:54 +01:00

power.h

PM / Hibernate: Add sysfs knob to control size of memory for drivers

2011-05-17 23:19:19 +02:00

poweroff.c

Input: sysrq - drop tty argument from sysrq ops handlers

2010-08-19 22:07:06 -07:00

process.c

workqueue, freezer: unify spelling of 'freeze' + 'able' to 'freezable'

2011-02-16 17:48:59 +01:00

snapshot.c

Revert "PM / Hibernate: Reduce autotuned default image size"

2011-05-17 23:19:19 +02:00

suspend_test.c

PM: Make warning in suspend_test_finish() less likely to happen

2009-10-22 08:23:45 +09:00

suspend.c

Merge branch 'syscore' into for-linus

2011-05-17 23:23:40 +02:00

swap.c

Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block

2011-01-13 10:45:01 -08:00

user.c

PM: Free memory bitmaps if opening /dev/snapshot fails

2011-06-21 23:20:06 +02:00