linux-kernel - [PATCH] usb: remove useless condition _ep

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Message-Id: <20220711152503.17657-1-strochuk@ispras.ru>
Date:   Mon, 11 Jul 2022 18:25:03 +0300
From:   Andrey Strachuk <strochuk@...ras.ru>
To:     Peter Chen <peter.chen@...nel.org>
Cc:     Andrey Strachuk <strochuk@...ras.ru>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        ldv-project@...uxtesting.org
Subject: [PATCH] usb: remove useless condition _ep_queue()

Comparison of 'ep' with NULL is useless since
'ep' is a result of container_of and cannot be NULL
in any reasonable scenario.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Andrey Strachuk <strochuk@...ras.ru>
Fixes: 2dbc5c4c8314 ("usb: chipidea: get rid of camelcase names")
---
 drivers/usb/chipidea/udc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 3b8bf6daf7d0..8ce31f9933e1 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -933,7 +933,7 @@ static int _ep_queue(struct usb_ep *ep, struct usb_request *req,
 	struct ci_hdrc *ci = hwep->ci;
 	int retval = 0;
 
-	if (ep == NULL || req == NULL || hwep->ep.desc == NULL)
+	if (req == NULL || hwep->ep.desc == NULL)
 		return -EINVAL;
 
 	if (hwep->type == USB_ENDPOINT_XFER_CONTROL) {
-- 
2.25.1