sis190: mdio operation failure is not correctly detected

i ranges from 0 to 100 in the 'for' loop a few lines above.

Reported by davem.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: K.M. Liu <kmliu@sis.com.tw>
diff --git a/drivers/net/sis190.c b/drivers/net/sis190.c
index 92e0eb9..342a986 100644
--- a/drivers/net/sis190.c
+++ b/drivers/net/sis190.c
@@ -372,7 +372,7 @@
 		msleep(1);
 	}
 
-	if (i > 999)
+	if (i > 99)
 		printk(KERN_ERR PFX "PHY command failed !\n");
 }