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authorJanusz Krzysztofik <jkrzyszt@tis.icnet.pl>2011-02-01 15:01:17 +0300
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-02-01 17:13:56 +0300
commitf019ee5feb344ff0b22b58df4568676295aae14f (patch)
tree477fffe9007cdabc7052e46354166867fb18ccaf /sound/soc/codecs/cx20442.c
parentacd62276773b46810a3292af0c915c9782138ff2 (diff)
downloadlinux-f019ee5feb344ff0b22b58df4568676295aae14f.tar.xz
ASoC: CX20442: fix NULL pointer dereference
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>
Diffstat (limited to 'sound/soc/codecs/cx20442.c')
-rw-r--r--sound/soc/codecs/cx20442.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/codecs/cx20442.c b/sound/soc/codecs/cx20442.c
index 03d1e860d229..bb4bf65b9e7e 100644
--- a/sound/soc/codecs/cx20442.c
+++ b/sound/soc/codecs/cx20442.c
@@ -367,9 +367,12 @@ static int cx20442_codec_remove(struct snd_soc_codec *codec)
return 0;
}
+static const u8 cx20442_reg = CX20442_TELOUT | CX20442_MIC;
+
static struct snd_soc_codec_driver cx20442_codec_dev = {
.probe = cx20442_codec_probe,
.remove = cx20442_codec_remove,
+ .reg_cache_default = &cx20442_reg,
.reg_cache_size = 1,
.reg_word_size = sizeof(u8),
.read = cx20442_read_reg_cache,