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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2019-09-10 22:51:51 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-09-10 16:16:00 +0200 |
| commit | 2617120f4de6d0423384e0e86b14c78b9de84d5a (patch) | |
| tree | dbc3f4d365e4f25c42d4ccc0e25dc5bf5ff79787 /sound | |
| parent | 2a36c16efab254dd6017efeb35ad88ecc96f2328 (diff) | |
| download | lwn-2617120f4de6d0423384e0e86b14c78b9de84d5a.tar.gz lwn-2617120f4de6d0423384e0e86b14c78b9de84d5a.zip | |
ALSA: firewire-tascam: handle error code when getting current source of clock
The return value of snd_tscm_stream_get_clock() is ignored. This commit
checks the value and handle error.
Fixes: e453df44f0d6 ("ALSA: firewire-tascam: add PCM functionality")
Cc: <stable@vger.kernel.org> # v4.4+
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20190910135152.29800-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/firewire/tascam/tascam-pcm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/firewire/tascam/tascam-pcm.c b/sound/firewire/tascam/tascam-pcm.c index b5ced5415e40..2377732caa52 100644 --- a/sound/firewire/tascam/tascam-pcm.c +++ b/sound/firewire/tascam/tascam-pcm.c @@ -56,6 +56,9 @@ static int pcm_open(struct snd_pcm_substream *substream) goto err_locked; err = snd_tscm_stream_get_clock(tscm, &clock); + if (err < 0) + goto err_locked; + if (clock != SND_TSCM_CLOCK_INTERNAL || amdtp_stream_pcm_running(&tscm->rx_stream) || amdtp_stream_pcm_running(&tscm->tx_stream)) { |