cassini: fix warning in drivers/net/cassini.c

this warning:

  drivers/net/cassini.c: In function ‘cas_rx_ringN’:
  drivers/net/cassini.c:2350: warning: ‘skb’ may be used uninitialized in this function

triggers because GCC does not recognize the (correct) error flow
between cas_rx_process_pkt() and 'skb'.

Annotate it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index bc84c4c..023d205 100644 (file)
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -2347,7 +2347,7 @@ static int cas_rx_ringN(struct cas *cp, int ring, int budget)
        drops = 0;
        while (1) {
                struct cas_rx_comp *rxc = rxcs + entry;
-               struct sk_buff *skb;
+               struct sk_buff *uninitialized_var(skb);
                int type, len;
                u64 words[4];
                int i, dring;