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ASoC: core: Don't set "(null)" as a driver name

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Commit 22de71b ("ASoC: core - allow ASoC more flexible machine name")
writes "(null)" to driver name string in struct snd_card if card->driver_name
is NULL. This causes segmentation faults with some user space ALSA utilities
like aplay and arecord.

Fix this by using the card->name if no driver name is specified.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Jarkko Nikula 2011-05-20 15:47:40 +03:00 committed by Mark Brown
parent 0dfe8da492
commit 2b39535b9e
1 changed files with 1 additions and 1 deletions
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2
sound/soc/soc-core.c
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@ -1930,7 +1930,7 @@ static void snd_soc_instantiate_card(struct snd_soc_card *card)
snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
"%s", card->long_name ? card->long_name : card->name);
snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
"%s", card->driver_name);
"%s", card->driver_name ? card->driver_name : card->name);
if (card->late_probe) {
ret = card->late_probe(card);