mfd: qcom_rpm: Fix a possible NULL dereference

of_match_device could return NULL, and so cause a NULL pointer
dereference later.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/qcom_rpm.c b/drivers/mfd/qcom_rpm.c
index 207a3bd6855979c9f3299b834889870bbb249b34..1be47ad6441bfa879a3efadbf8fada0d38b673ef 100644 (file)
--- a/drivers/mfd/qcom_rpm.c
+++ b/drivers/mfd/qcom_rpm.c
@@ -495,6 +495,8 @@ static int qcom_rpm_probe(struct platform_device *pdev)
        }
 
        match = of_match_device(qcom_rpm_of_match, &pdev->dev);
+       if (!match)
+               return -ENODEV;
        rpm->data = match->data;
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);