[alsa-devel] [PATCH 02/22] ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card
Peter Ujfalusi
peter.ujfalusi at ti.com
Thu Jun 4 14:22:26 CEST 2015
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 at ti.com>
---
sound/soc/codecs/tas2552.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c
index ff82f46ba504..df89947f1032 100644
--- 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
--
2.4.2
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