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author | Takashi Iwai <tiwai@suse.de> | 2022-06-17 16:40:49 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2022-06-20 09:36:02 +0200 |
commit | 94b98194b62e3fe3f27129d8e4b1f3fd7c5e972b (patch) | |
tree | 1220408576b9f1e25bf1db000de5800b74adb486 /sound/parisc | |
parent | f1d40433352e5d4babd59c0dd50b5f9414073ddb (diff) | |
download | linux-94b98194b62e3fe3f27129d8e4b1f3fd7c5e972b.tar.bz2 |
ALSA: rawmidi: Take open_mutex around parameter changes
The input/output parameter changes are pretty intrusive, possibly
involving with the buffer resizing operation. Hence those should be
performed exclusively; otherwise some ugly race could happen.
This patch puts the existing open_mutex for snd_rawmidi_input_params()
and *_output_params() for protecting the concurrent calls. Since
those are exported, it's also meant for hardening from the external
calls, too.
Link: https://lore.kernel.org/r/20220617144051.18985-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/parisc')
0 files changed, 0 insertions, 0 deletions