From: Tom Rini <trini@ti.com>
Date: Wed, 31 Oct 2012 13:30:41 +0000 (+0000)
Subject: usb gadget ether: Fix warning in is_eth_addr_valid()
X-Git-Tag: v2013.01-rc1~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=57a87a25f7563158d2b8a83d782568f1e6fc7fc5;p=kernel%2Fu-boot.git

usb gadget ether: Fix warning in is_eth_addr_valid()

The gadget ethernet driver needs to keep copies of the MAC address (at
both endpoints) as strings so it needs a custom function for validation
of the MAC.  It was not however performing a totally correct check and
also was emitting a warning about a set but unused variable.  The
solution to both is that after checking the string contents we use the
standard test for a valid MAC.

Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
---

diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 1e187e5..8b24e00 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -1978,8 +1978,8 @@ static int is_eth_addr_valid(char *str)
 			p = q;
 		}
 
-		if (i == 6) /* it looks ok */
-			return 1;
+		/* Now check the contents. */
+		return is_valid_ether_addr(ea);
 	}
 	return 0;
 }