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ASoC: imx-card: Fix refcount issue with of_node_put 

imx_card_parse_of will search all the node with loop,
if there is defer probe happen in the middle of loop,
the previous released codec node will be released
twice, then cause refcount issue.

Here assign NULL to pointer of released nodes to fix
the issue.

Fixes: aa736700f4 ("ASoC: imx-card: Add imx-card machine driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1663059601-29259-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Shengjiu Wang 2022-09-13 17:00:01 +08:00 committed by Mark Brown
parent b2ddf399d0
commit d56ba9a04d
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1 changed files with 4 additions and 0 deletions
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4
sound/soc/fsl/imx-card.c
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@ -698,6 +698,10 @@ static int imx_card_parse_of(struct imx_card_data *data)
of_node_put(cpu);
of_node_put(codec);
of_node_put(platform);
cpu = NULL;
codec = NULL;
platform = NULL;
}
return 0;