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| author | Armin Wolf <W_Armin@gmx.de> | 2024-10-01 23:28:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-10-10 12:01:12 +0200 |
| commit | ca26e8eed9c1c6651f51f7fa38fe444f8573cd1b (patch) | |
| tree | 3c551767440f0e008dc81e7371a7efcd33d721d8 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 31ffdcb2b302306a0d8a64ba30896b8ac4b84473 (diff) | |
| download | kernel-ca26e8eed9c1c6651f51f7fa38fe444f8573cd1b.tar.gz | |
ACPI: battery: Fix possible crash when unregistering a battery hook
[ Upstream commit 76959aff14a0012ad6b984ec7686d163deccdc16 ]
When a battery hook returns an error when adding a new battery, then
the battery hook is automatically unregistered.
However the battery hook provider cannot know that, so it will later
call battery_hook_unregister() on the already unregistered battery
hook, resulting in a crash.
Fix this by using the list head to mark already unregistered battery
hooks as already being unregistered so that they can be ignored by
battery_hook_unregister().
Fixes: fa93854f7a7e ("battery: Add the battery hooking API")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20241001212835.341788-3-W_Armin@gmx.de
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions