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[PATCH] phy - Fix possible NULL derefrence.

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  [PATCH] phy - Fix possible NULL derefrence. Shailendra Verma <shailendra.v@samsung.com> - 2017-01-30 06:10 +0100

#1569394 — [PATCH] phy - Fix possible NULL derefrence.

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

Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>
---
 drivers/phy/phy-berlin-usb.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/phy/phy-berlin-usb.c b/drivers/phy/phy-berlin-usb.c
index 2017751..c85c516 100644
--- a/drivers/phy/phy-berlin-usb.c
+++ b/drivers/phy/phy-berlin-usb.c
@@ -172,6 +172,11 @@ static int phy_berlin_usb_probe(struct platform_device *pdev)
 	struct phy *phy;
 	struct phy_provider *phy_provider;
 
+	if (!match) {
+		dev_err(&pdev->dev, "Error: No device match found\n");
+		return -ENODEV;
+	}
+
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
-- 
1.7.9.5

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