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| author | Linus Torvalds <[email protected]> | 2021-07-24 22:25:54 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2021-07-24 22:25:54 +0000 |
| commit | fc68f42aa737dc15e7665a4101d4168aadb8e4c4 (patch) | |
| tree | 2ff10e7274b864582aeba2a4cf084285a493dac4 /drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | |
| parent | Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/... (diff) | |
| download | kernel-fc68f42aa737dc15e7665a4101d4168aadb8e4c4.tar.gz kernel-fc68f42aa737dc15e7665a4101d4168aadb8e4c4.zip | |
ACPI: fix NULL pointer dereference
Commit 71f642833284 ("ACPI: utils: Fix reference counting in
for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer
that was possibly NULL. That fails miserably, because that helper
inline function is not set up to handle that case.
Just make acpi_dev_put() silently accept a NULL pointer, rather than
calling down to put_device() with an invalid offset off that NULL
pointer.
Link: https://lore.kernel.org/lkml/[email protected]/
Reported-and-tested-by: Jens Axboe <[email protected]>
Tested-by: Daniel Scally <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c')
0 files changed, 0 insertions, 0 deletions