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authorShengjiu Wang <shengjiu.wang@nxp.com>2022-09-13 12:00:01 +0300
committerMark Brown <broonie@kernel.org>2022-09-13 14:34:07 +0300
commitd56ba9a04d7548d4149c46ec86a0e3cc41a70f4a (patch)
treec7b0cb54ba9eba71ea47884be65d0001270ba94a /sound
parentb2ddf399d0555d3b517ed97f35767c054bbc6535 (diff)
downloadlinux-d56ba9a04d7548d4149c46ec86a0e3cc41a70f4a.tar.xz
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: aa736700f42f ("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>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/fsl/imx-card.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c
index 14be29530fb5..3f128ced4180 100644
--- a/sound/soc/fsl/imx-card.c
+++ b/sound/soc/fsl/imx-card.c
@@ -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;