From: Shengjiu Wang shengjiu.wang@nxp.com
[ Upstream commit d56ba9a04d7548d4149c46ec86a0e3cc41a70f4a ]
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@nx... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/fsl/imx-card.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c index 593d69b96523..d59f5efbf7ed 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;