ASoC: mediatek: common: handle NULL case in suspend/resume function

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When memory allocation for afe->reg_back_up fails, reg_back_up can't
be used.
Keep the suspend/resume flow but skip register backup when
afe->reg_back_up is NULL, in case illegal memory access happens.

Fixes: 283b612429 ("ASoC: mediatek: implement mediatek common structure")
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210910092613.30188-1-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Trevor Wu 2021-09-10 17:26:13 +08:00 • committed by Mark Brown

parent 26be23af18

commit 1dd0385226

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sound/soc/mediatek/common/mtk-afe-fe-dai.c

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