[PATCH] usb: phy: am335x-control: check return value of bus_find_device

[David Dueck]

This fixes a potential null pointer dereference.

Signed-off-by: David Dueck <davidcdueck@xxxxxxxxxxxxxx>
---
 drivers/usb/phy/phy-am335x-control.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c
index 403fab7..7b3035f 100644
--- a/drivers/usb/phy/phy-am335x-control.c
+++ b/drivers/usb/phy/phy-am335x-control.c
@@ -126,6 +126,9 @@ struct phy_control *am335x_get_phy_control(struct device *dev)
 		return NULL;
 
 	dev = bus_find_device(&platform_bus_type, NULL, node, match);
+	if (!dev)
+		return NULL;
+
 	ctrl_usb = dev_get_drvdata(dev);
 	if (!ctrl_usb)
 		return NULL;
-- 
2.2.2

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