qlge: fix a timeout loop in ql_change_rx_buffers()

The problem here is that after the loop we test for "if (!i) " but
because "i--" is a post-op we exit with i set to -1.  I have fixed this
by changing it to a pre-op instead.  I had to change the starting value
from 3 to 4 so that we still iterate 3 times.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index 02b7115b6aaa..997976426799 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -4211,8 +4211,9 @@ static int ql_change_rx_buffers(struct ql_adapter *qdev)
 
         /* Wait for an outstanding reset to complete. */
         if (!test_bit(QL_ADAPTER_UP, &qdev->flags)) {
-                int i = 3;
-                while (i-- && !test_bit(QL_ADAPTER_UP, &qdev->flags)) {
+                int i = 4;
+
+                while (--i && !test_bit(QL_ADAPTER_UP, &qdev->flags)) {
                         netif_err(qdev, ifup, qdev->ndev,
                                   "Waiting for adapter UP...\n");
                         ssleep(1);