s2io: fix warning in drivers/net/s2io.c

this warning:

  drivers/net/s2io.c: In function ‘rx_intr_handler’:
  drivers/net/s2io.c:7369: warning: ‘lro’ may be used uninitialized in this function

triggers because GCC does not recognize the (correct) error flow
between:

 - s2io_club_tcp_session()and 'lro'

Annotate it.

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

diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index a4642054a0d00dff92eeb45fb3027db7aaa290e4..1b489df80fa675b88d9cc81de87b3e6f0458aee6 100644 (file)
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -7367,7 +7367,7 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
        int ring_no = ring_data->ring_no;
        u16 l3_csum, l4_csum;
        unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
-       struct lro *lro;
+       struct lro *uninitialized_var(lro);
        u8 err_mask;
 
        skb->dev = dev;