net: variables reach -1, but 0 tested

while (timeout--) { ... }

timeout becomes -1 if the loop isn't ended otherwise, not 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/ibm_newemac/phy.c b/drivers/net/ibm_newemac/phy.c
index c40cd8df2212..ac9d964e59ec 100644
--- a/drivers/net/ibm_newemac/phy.c
+++ b/drivers/net/ibm_newemac/phy.c
@@ -60,7 +60,7 @@ int emac_mii_reset_phy(struct mii_phy *phy)
 
         udelay(300);
 
-        while (limit--) {
+        while (--limit) {
                 val = phy_read(phy, MII_BMCR);
                 if (val >= 0 && (val & BMCR_RESET) == 0)
                         break;
@@ -84,7 +84,7 @@ int emac_mii_reset_gpcs(struct mii_phy *phy)
 
         udelay(300);
 
-        while (limit--) {
+        while (--limit) {
                 val = gpcs_phy_read(phy, MII_BMCR);
                 if (val >= 0 && (val & BMCR_RESET) == 0)
                         break;