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authorBaolin Wang <baolin.wang@linaro.org>2017-08-28 19:02:41 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-31 18:08:47 +0200
commiteb3c74de28b24f5a36d12d6c84f1fceb25d12c4f (patch)
treeeb30f865259f233e31169b04d5456afd9ebf5c8a /include/linux/usb
parent06e74935c77e8605d7d825cd3762cad2c70578ed (diff)
usb: phy: Avoid unchecked dereference warning
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/phy.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index de881b171ba9..8c6914873a16 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;
}