From: wlf <wulf@rock-chips.com>
Date: Tue, 1 Apr 2014 06:29:31 +0000 (+0800)
Subject: USB: Fix gadget_wrapper NULL pointer bug.
X-Git-Tag: firefly_0821_release~5676
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=5bbd230128cc8ab5eeea730c2a83553efc78bd2a;p=firefly-linux-kernel-4.4.55.git

USB: Fix gadget_wrapper NULL pointer bug.
---

diff --git a/drivers/usb/dwc_otg_310/dwc_otg_pcd_linux.c b/drivers/usb/dwc_otg_310/dwc_otg_pcd_linux.c
index 756c5c23b0a2..443b839339fa 100755
--- a/drivers/usb/dwc_otg_310/dwc_otg_pcd_linux.c
+++ b/drivers/usb/dwc_otg_310/dwc_otg_pcd_linux.c
@@ -1616,7 +1616,9 @@ int dwc_vbus_status( void )
 {
 #ifdef CONFIG_USB20_OTG
 	dwc_otg_pcd_t *pcd = 0;
-	pcd = gadget_wrapper->pcd;
+	if(gadget_wrapper){
+		pcd = gadget_wrapper->pcd;
+	}
 
 	if(!pcd)
 		return 0;