sis900: fix warning in drivers/net/sis900.c

this warning:

  drivers/net/sis900.c: In function ‘sis900_timer’:
  drivers/net/sis900.c:1280: warning: ‘speed’ may be used uninitialized in this function

triggers because GCC does not recognize the (correct) error flow
between sis900_read_mode(), 'speed' and 'duplex'.

Annotate it.

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

diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c
index de740eb..eb715f1 100644 (file)
--- a/drivers/net/sis900.c
+++ b/drivers/net/sis900.c
@@ -1281,7 +1281,7 @@ static void sis900_timer(unsigned long data)
        u16 status;
 
        if (!sis_priv->autong_complete){
-               int speed, duplex = 0;
+               int uninitialized_var(speed), duplex = 0;
 
                sis900_read_mode(net_dev, &speed, &duplex);
                if (duplex){