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ASoC: core: On resume also check the soc device state 

Check the card->codec on soc_resume to detect if the soc
device is properly initialized.
If the card->codec is NULL, than do not continue the resume
operation, since the device is not initialized properly.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
hifive-unleashed-5.1
Peter Ujfalusi 2010-02-22 13:27:13 +02:00 committed by Mark Brown
parent 6c5f1fed49
commit b9dd94a87e
1 changed files with 6 additions and 0 deletions
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6
sound/soc/soc-core.c
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@ -963,6 +963,12 @@ static int soc_resume(struct device *dev)
struct snd_soc_card *card = socdev->card;
struct snd_soc_dai *cpu_dai = card->dai_link[0].cpu_dai;
/* If the initialization of this soc device failed, there is no codec
* associated with it. Just bail out in this case.
*/
if (!card->codec)
return 0;
/* AC97 devices might have other drivers hanging off them so
* need to resume immediately. Other drivers don't have that
* problem and may take a substantial amount of time to resume