diff mbox series

usb: phy: Avoid unchecked dereference warning

Message ID 7c740b51a4c307f655c4ae3003748329411313cb.1503917860.git.baolin.wang@linaro.org
State Accepted
Commit eb3c74de28b24f5a36d12d6c84f1fceb25d12c4f
Headers show
Series usb: phy: Avoid unchecked dereference warning | expand

Commit Message

(Exiting) Baolin Wang Aug. 28, 2017, 11:02 a.m. UTC
Move the USB phy NULL checking before issuing usb_phy_set_charger_current()
to avoid unchecked dereference warning.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>

---
 include/linux/usb/phy.h |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

-- 
1.7.9.5
diff mbox series

Patch

diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index de881b1..8c69148 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -322,9 +322,12 @@  static inline void usb_phy_set_charger_state(struct usb_phy *usb_phy,
 static inline int
 usb_phy_set_power(struct usb_phy *x, unsigned mA)
 {
+	if (!x)
+		return 0;
+
 	usb_phy_set_charger_current(x, mA);
 
-	if (x && x->set_power)
+	if (x->set_power)
 		return x->set_power(x, mA);
 	return 0;
 }