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| author |   Takashi Iwai <tiwai@suse.de> | 2021-11-07 17:39:11 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-11-07 17:55:05 +0100 |
| commit | 8e537d5dec34cac746dd6abf6a83e5de3aa471fc (patch) | |
| tree | d7bb2596181b3e1555715c762b233bf3bd3e55ca /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ALSA: hda/realtek: Add quirk for ASUS UX550VE (diff) | |
| download | linux-dev-8e537d5dec34cac746dd6abf6a83e5de3aa471fc.tar.xz linux-dev-8e537d5dec34cac746dd6abf6a83e5de3aa471fc.zip | |
ALSA: PCM: Fix NULL dereference at mmap checks
The recent refactoring of mmap handling caused Oops on some devices
that don't use the standard memory allocations. This patch addresses
it by allowing snd_dma_buffer_mmap() helper to receive the NULL
pointer dmab argument (and return an error appropriately).
Fixes: a202bd1ad86d ("ALSA: core: Move mmap handler into memalloc ops")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211107163911.13534-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
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