linux-kernel - [2.6 patch] usbat_check_status(): fix check-after-use

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Date:	Tue, 31 Jul 2007 00:28:22 +0200
From:	Adrian Bunk <bunk@...sta.de>
To:	mdharm-usb@...-eyed-alien.net, gregkh@...e.de
Cc:	linux-usb-devel@...ts.sourceforge.net,
	usb-storage@...ts.one-eyed-alien.net, linux-kernel@...r.kernel.org
Subject: [2.6 patch] usbat_check_status(): fix check-after-use

The Coverity checker spotted that we have already oops'ed if "us"
was NULL.

Since "us" can't be NULL in the only caller this patch removes the
NULL check.

Signed-off-by: Adrian Bunk <bunk@...sta.de>

---
--- linux-2.6.23-rc1-mm1/drivers/usb/storage/shuttle_usbat.c.old	2007-07-30 16:56:34.000000000 +0200
+++ linux-2.6.23-rc1-mm1/drivers/usb/storage/shuttle_usbat.c	2007-07-30 16:57:24.000000000 +0200
@@ -190,9 +190,6 @@ static int usbat_check_status(struct us_
 	unsigned char *reply = us->iobuf;
 	int rc;
 
-	if (!us)
-		return USB_STOR_TRANSPORT_ERROR;
-
 	rc = usbat_get_status(us, reply);
 	if (rc != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_FAILED;

-
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