From 19e19a171072c56fd3203a8d68e703963e5a90db Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 1 Jul 2016 15:33:28 +0800 Subject: [PATCH] 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. Change-Id: Ie919a2a886924f1b1e01415bfdaa53f74046f5b0 Signed-off-by: Peter Chen Signed-off-by: Felipe Balbi Git-commit: c526c62d565ea5a5bba9433f28756079734f430d Git-repo: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git Signed-off-by: Jack Pham --- drivers/usb/gadget/composite.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 3d17fd93c787..457d0cf6135a 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1962,6 +1962,8 @@ 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))