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Subject[PATCH 4.1 082/267] ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card
Date
4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Peter Ujfalusi <peter.ujfalusi@ti.com>

commit 80ba2669ec8c3e6517aa935001f6cb8809bf3df4 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
sound/soc/codecs/tas2552.c | 3 +++
1 file changed, 3 insertions(+)

--- a/sound/soc/codecs/tas2552.c
+++ b/sound/soc/codecs/tas2552.c
@@ -120,6 +120,9 @@ static void tas2552_sw_shutdown(struct t
{
u8 cfg1_reg;

+ if (!tas_data->codec)
+ return;
+
if (sw_shutdown)
cfg1_reg = 0;
else



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