USB: gadget eth: Fix calculate CRC32 in EEM

CRC should be calculated for Ethernet frame, not for whole recievede EEM data. This bug shows rarely, because in many times len == skb->len. Signed-off-by: Jiri Pinkava <jiri.pinkava@vscht.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
mariux64 · Jun 30, 2010 · 03ab746 · 03ab746
1 parent 0d152de
commit 03ab746
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c
@@ -469,8 +469,7 @@ static int eem_unwrap(struct gether *port,
 				crc = get_unaligned_le32(skb->data + len
 							- ETH_FCS_LEN);
 				crc2 = ~crc32_le(~0,
-						skb->data,
-						skb->len - ETH_FCS_LEN);
+						skb->data, len - ETH_FCS_LEN);
 			} else {
 				crc = get_unaligned_be32(skb->data + len
 							- ETH_FCS_LEN);