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>

drivers/net/sis190.c

@@ -372,7 +372,7 @@ static void __mdio_cmd(void __iomem *ioaddr, u32 ctl)
 		msleep(1);
 	}
 
-	if (i > 999)
+	if (i > 99)
 		printk(KERN_ERR PFX "PHY command failed !\n");
 }