[PATCH 5.17 0329/1126] soc: qcom: aoss: Fix missing put_device call in qmp_get

Greg Kroah-Hartman
2022-04-05T08:20:50Z

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit 4b41a9d0fe3db5f91078a380f62f0572c3ecf2dd ]

The reference taken by 'of_find_device_by_node()' must be released when
not needed anymore.
Add the corresponding 'put_device()' in the error handling paths.

Fixes: 8c75d585b931 ("soc: qcom: aoss: Expose send for generic usecase")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220108095931.21527-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/soc/qcom/qcom_aoss.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c
index cbe5e39fdaeb..563ae0a501dc 100644
--- a/drivers/soc/qcom/qcom_aoss.c
+++ b/drivers/soc/qcom/qcom_aoss.c
@@ -451,7 +451,11 @@ struct qmp *qmp_get(struct device *dev)

qmp = platform_get_drvdata(pdev);

- return qmp ? qmp : ERR_PTR(-EPROBE_DEFER);
+ if (!qmp) {
+ put_device(&pdev->dev);
+ return ERR_PTR(-EPROBE_DEFER);
+ }
+ return qmp;
}
EXPORT_SYMBOL(qmp_get);

--
2.34.1