From: Peter Chen <peter.chen@nxp.com>
Date: Fri, 1 Jul 2016 07:33:28 +0000 (+0800)
Subject: usb: gadget: composite: fix dereference after null check coverify warning
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c526c62d565ea5a5bba9433f28756079734f430d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

usb: gadget: composite: fix dereference after null check coverify warning

cdev->config is checked for null pointer at above code, so cdev->config
might be null, fix it by adding null pointer check.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
---

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index eb648485a58c..a8ecc7a612b9 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1913,6 +1913,8 @@ unknown:
 			break;
 
 		case USB_RECIP_ENDPOINT:
+			if (!cdev->config)
+				break;
 			endp = ((w_index & 0x80) >> 3) | (w_index & 0x0f);
 			list_for_each_entry(f, &cdev->config->functions, list) {
 				if (test_bit(endp, f->endpoints))