Messages in this thread Patch in this message | | | From | Kamal Mostafa <> | Subject | [PATCH 3.19.y-ckt 078/251] ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card | Date | Wed, 15 Jul 2015 18:06:39 -0700 |
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3.19.8-ckt4 -stable review patch. If anyone has any objections, please let me know.
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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: Kamal Mostafa <kamal@canonical.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 ae23acd..a073dc9 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 -- 1.9.1
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