Commit 2336a986 authored by Li Yang's avatar Li Yang Committed by Greg Kroah-Hartman

usb gadget: fix fsl_usb2_udc potential OOPS

For fsl_usb2_udc driver, ep0 also has a descriptor.  Current code is
misleading and contains a logical mistake.  Here is the patch to fix it.

 http://bugzilla.kernel.org/show_bug.cgi?id=9595

Cc: stable <stable@kernel.org>
Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 3004e537
...@@ -776,7 +776,7 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) ...@@ -776,7 +776,7 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
VDBG("%s, bad params\n", __FUNCTION__); VDBG("%s, bad params\n", __FUNCTION__);
return -EINVAL; return -EINVAL;
} }
if (!_ep || (!ep->desc && ep_index(ep))) { if (unlikely(!_ep || !ep->desc)) {
VDBG("%s, bad ep\n", __FUNCTION__); VDBG("%s, bad ep\n", __FUNCTION__);
return -EINVAL; return -EINVAL;
} }
......
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