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Subject[PATCH] usb: phy: am335x-control: check return value of bus_find_device
Date
This fixes a potential null pointer dereference.

Signed-off-by: David Dueck <davidcdueck@googlemail.com>
---
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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