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| author | Takashi Iwai <tiwai@suse.de> | 2024-06-24 14:54:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-07-25 09:49:16 +0200 |
| commit | 7f76855a1ed51bbb1d46703db83c026402a97ee0 (patch) | |
| tree | 62f2e8022991ce9ad8b7640e0de20107c09e1f78 | |
| parent | 16ad1557cae582e79bb82dddd612d9bdfaa11d4c (diff) | |
| download | linux-7f76855a1ed51bbb1d46703db83c026402a97ee0.tar.gz linux-7f76855a1ed51bbb1d46703db83c026402a97ee0.tar.bz2 linux-7f76855a1ed51bbb1d46703db83c026402a97ee0.zip | |
ALSA: PCM: Allow resume only for suspended streams
[ Upstream commit 1225675ca74c746f09211528588e83b3def1ff6a ]
snd_pcm_resume() should bail out if the stream isn't in a suspended
state. Otherwise it'd allow doubly resume.
Link: https://patch.msgid.link/20240624125443.27808-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | sound/core/pcm_native.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 9238abbfb2d6..2b73518e5e31 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1781,6 +1781,8 @@ static int snd_pcm_pre_resume(struct snd_pcm_substream *substream, snd_pcm_state_t state) { struct snd_pcm_runtime *runtime = substream->runtime; + if (runtime->state != SNDRV_PCM_STATE_SUSPENDED) + return -EBADFD; if (!(runtime->info & SNDRV_PCM_INFO_RESUME)) return -ENOSYS; runtime->trigger_master = substream; |