From: Jeff Garzik <jeff@garzik.org>
Date: Tue, 17 Jul 2007 05:08:29 +0000 (-0400)
Subject: drivers/usb/misc/auerswald: fix status check, remove redundant check
X-Git-Tag: v2.6.23-rc1~515^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ae97fec3701a559929c3529e35417fab133a4d39;p=platform%2Fkernel%2Flinux-exynos.git

drivers/usb/misc/auerswald: fix status check, remove redundant check

1) We should only set 'actual_length' output variable if usb length is
known to be good.

2) No need to check actual_length for NULL.  The only caller always
passes non-NULL value.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c
index 1fd5fc2..3e22b2f 100644
--- a/drivers/usb/misc/auerswald.c
+++ b/drivers/usb/misc/auerswald.c
@@ -630,7 +630,7 @@ static int auerchain_start_wait_urb (pauerchain_t acp, struct urb *urb, int time
 	} else
 		status = urb->status;
 
-	if (actual_length)
+	if (status >= 0)
 		*actual_length = urb->actual_length;
 
   	return status;