[PATCH] usb: phy: Avoid unchecked dereference warning
From: Baolin Wang
Date: Mon Aug 28 2017 - 07:03:53 EST
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@xxxxxxxxxx>
---
include/linux/usb/phy.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
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;
}
--
1.7.9.5