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ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card
author
Peter Ujfalusi
<peter.ujfalusi@ti.com>
Thu, 4 Jun 2015 13:04:14 +0000
(16:04 +0300)
committer
Mark Brown
<broonie@kernel.org>
Thu, 4 Jun 2015 16:49:46 +0000
(17:49 +0100)
If the card is not part of any card the tas_data->codec is NULL since it is
set only during snd_soc_codec_driver.probe, which is not yet called.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
sound/soc/codecs/tas2552.c
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diff --git
a/sound/soc/codecs/tas2552.c
b/sound/soc/codecs/tas2552.c
index
ff82f46
..
df89947
100644
(file)
--- a/
sound/soc/codecs/tas2552.c
+++ b/
sound/soc/codecs/tas2552.c
@@
-120,6
+120,9
@@
static void tas2552_sw_shutdown(struct tas2552_data *tas_data, int sw_shutdown)
{
u8 cfg1_reg;
+ if (!tas_data->codec)
+ return;
+
if (sw_shutdown)
cfg1_reg = 0;
else