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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-09-20 11:41:54 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-13 11:06:08 -0800
commit10f672f1a199240bc2a77d6f81e1d37f33ba743e (patch)
tree29974eb8e5b07583e9ffc6f9327714dab2c203bb /sound
parentc27711dc7f2cff89cee6a47026d936672cb29350 (diff)
ASoC: Ensure we generate a driver name
commit f0e8ed858edb327802ee65fd695cc1538286226f upstream. Commit 873bd4c (ASoC: Don't set invalid name string to snd_card->driver field) broke generation of a driver name for all ASoC cards relying on the automatic generation of one. Fix this by using the old default with spaces replaced by underscores. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/soc-core.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 493ae7c4c04..e2bfe1d69e7 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -30,6 +30,7 @@
#include <linux/bitops.h>
#include <linux/debugfs.h>
#include <linux/platform_device.h>
+#include <linux/ctype.h>
#include <linux/slab.h>
#include <sound/ac97_codec.h>
#include <sound/core.h>
@@ -1931,9 +1932,20 @@ static void snd_soc_instantiate_card(struct snd_soc_card *card)
"%s", card->name);
snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
"%s", card->long_name ? card->long_name : card->name);
- if (card->driver_name)
- strlcpy(card->snd_card->driver, card->driver_name,
- sizeof(card->snd_card->driver));
+ snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
+ "%s", card->driver_name ? card->driver_name : card->name);
+ for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
+ switch (card->snd_card->driver[i]) {
+ case '_':
+ case '-':
+ case '\0':
+ break;
+ default:
+ if (!isalnum(card->snd_card->driver[i]))
+ card->snd_card->driver[i] = '_';
+ break;
+ }
+ }
if (card->late_probe) {
ret = card->late_probe(card);