soc: qcom: aoss: Fix missing put_device call in qmp_get

commit 4b41a9d0fe3db5f91078a380f62f0572c3ecf2dd upstream.

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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c
index d40d8e2..8583c1e 100644 (file)
--- a/drivers/soc/qcom/qcom_aoss.c
+++ b/drivers/soc/qcom/qcom_aoss.c
@@ -551,7 +551,11 @@ 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);