xen-netfront: frags -> slots in log message

Also fix a typo in comment.
Signed-off-by: NWei Liu <wei.liu2@citrix.com>
Acked-by: NIan Campbell <ian.campbell@citrix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/xen-netfront.c

@@ -735,7 +735,7 @@ static int xennet_get_responses(struct netfront_info *np,
 		/*
 		 * This definitely indicates a bug, either in this driver or in
 		 * the backend driver. In future this should flag the bad
-		 * situation to the system controller to reboot the backed.
+		 * situation to the system controller to reboot the backend.
 		 */
 		if (ref == GRANT_INVALID_REF) {
 			if (net_ratelimit())
@@ -771,7 +771,7 @@ static int xennet_get_responses(struct netfront_info *np,
 
 	if (unlikely(slots > max)) {
 		if (net_ratelimit())
-			dev_warn(dev, "Too many frags\n");
+			dev_warn(dev, "Too many slots\n");
 		err = -E2BIG;
 	}