[PATCH] Signedness issue in drivers/net/3c515.c

while playing with gcc 4.1 -Wextra warnings, I came across this one:

drivers/net/3c515.c:1027: warning: comparison of unsigned expression >= 0 is always true

Since i is unsigned the >= 0 check in the for loop is always true,
so we might spin there forever unless the if condition triggers.
Since i is only used in this loop, this patch changes it to
an integer.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/net/3c515.c b/drivers/net/3c515.c
index 4532b17..aedfddf 100644 (file)
--- a/drivers/net/3c515.c
+++ b/drivers/net/3c515.c
@@ -1003,7 +1003,8 @@ static int corkscrew_start_xmit(struct sk_buff *skb,
                /* Calculate the next Tx descriptor entry. */
                int entry = vp->cur_tx % TX_RING_SIZE;
                struct boom_tx_desc *prev_entry;
-               unsigned long flags, i;
+               unsigned long flags;
+               int i;
 
                if (vp->tx_full)        /* No room to transmit with */
                        return 1;