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author | Takashi Iwai <tiwai@suse.de> | 2022-03-22 18:13:25 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2022-03-22 20:57:15 +0100 |
commit | 1f68915b2efd0d6bfd6e124aa63c94b3c69f127c (patch) | |
tree | 8ecc866b1820296c074e8a6d1bc8231d944b8c8d /sound/pci | |
parent | 69534c48ba8ce552ce383b3dfdb271ffe51820c3 (diff) |
ALSA: pcm: Add stream lock during PCM reset ioctl operations
snd_pcm_reset() is a non-atomic operation, and it's allowed to run
during the PCM stream running. It implies that the manipulation of
hw_ptr and other parameters might be racy.
This patch adds the PCM stream lock at appropriate places in
snd_pcm_*_reset() actions for covering that.
Cc: <stable@vger.kernel.org>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20220322171325.4355-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
0 files changed, 0 insertions, 0 deletions