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| author | Michal Kubecek <[email protected]> | 2011-06-18 18:34:01 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2011-06-21 21:20:06 +0000 |
| commit | 8440f4b19494467883f8541b7aa28c7bbf6ac92b (patch) | |
| tree | 3682e034553d8b9ac676e17b144fe5b15cbb0174 /kernel/trace/trace_functions.c | |
| parent | PM: Rename dev_pm_info.in_suspend to is_prepared (diff) | |
| download | kernel-8440f4b19494467883f8541b7aa28c7bbf6ac92b.tar.gz kernel-8440f4b19494467883f8541b7aa28c7bbf6ac92b.zip | |
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 <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Cc: [email protected]
Diffstat (limited to 'kernel/trace/trace_functions.c')
0 files changed, 0 insertions, 0 deletions