openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ASoC: Don't oops in soc_probe_aux_dev in case of missing codec 

Blind copy of codec finding algorithm from soc_bind_dai_link does not work
in soc_probe_aux_dev if matching codec name is not found. In that case the
code falls through and tries to start the probing procedure with invalid
codec pointer.

Fix this and add an error print showing the codec name that cannot be found.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Jarkko Nikula 2010-12-03 09:18:22 +02:00 committed by Mark Brown
parent 4bd3a1f415
commit 676ad98a06
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sound/soc/soc-core.c
View File

@ -1609,7 +1609,7 @@ static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
struct snd_soc_codec *codec;
const char *temp;
int ret = 0;
int ret = -ENODEV;
/* find CODEC from registered CODECs*/
list_for_each_entry(codec, &codec_list, list) {
@ -1620,10 +1620,14 @@ static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
ret = -EBUSY;
goto out;
}
break;
goto found;
}
}
/* codec not found */
dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name);
goto out;
found:
if (!try_module_get(codec->dev->driver->owner))
return -ENODEV;