netback: fix typo in comment

"variables a used" should be "variables are used".

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index ca0370e90cf91b85ace04391fb7eab1210573003..d2ffe9cd29c306a7d848371efd03c1177deac77b 100644 (file)
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -395,7 +395,7 @@ static void netbk_gop_frag_copy(struct xenvif *vif, struct sk_buff *skb,
        struct gnttab_copy *copy_gop;
        struct netbk_rx_meta *meta;
        /*
-        * These variables a used iff get_page_ext returns true,
+        * These variables are used iff get_page_ext returns true,
         * in which case they are guaranteed to be initialized.
         */
        unsigned int uninitialized_var(group), uninitialized_var(idx);