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ASoC: CX20442: fix NULL pointer dereference

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The CX20442 codec driver never provided the snd_soc_codec_driver's
.reg_cache_default member. With the latest ASoC framework changes, it
seems to be referred unconditionally, resulting in a NULL pointer
dereference if missing. Provide it.

Created and tested on Amstrad Delta against linux-2.6.38-rc2

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Janusz Krzysztofik 2011-02-01 13:01:17 +01:00 committed by Mark Brown
parent acd6227677
commit f019ee5feb
1 changed files with 3 additions and 0 deletions
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3
sound/soc/codecs/cx20442.c
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@ -367,9 +367,12 @@ static int cx20442_codec_remove(struct snd_soc_codec *codec)
return 0; return 0;
} }
static const u8 cx20442_reg = CX20442_TELOUT | CX20442_MIC;
static struct snd_soc_codec_driver cx20442_codec_dev = { static struct snd_soc_codec_driver cx20442_codec_dev = {
.probe = cx20442_codec_probe, .probe = cx20442_codec_probe,
.remove = cx20442_codec_remove, .remove = cx20442_codec_remove,
.reg_cache_default = &cx20442_reg,
.reg_cache_size = 1, .reg_cache_size = 1,
.reg_word_size = sizeof(u8), .reg_word_size = sizeof(u8),
.read = cx20442_read_reg_cache, .read = cx20442_read_reg_cache,