drivers/net: Remove pointless checks for NULL prior to calling kfree()
diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c
index 60dba4a..73f2fcf 100644
--- a/drivers/net/bmac.c
+++ b/drivers/net/bmac.c
@@ -1689,10 +1689,8 @@
 {
 	macio_unregister_driver(&bmac_driver);
 
-	if (bmac_emergency_rxbuf != NULL) {
-		kfree(bmac_emergency_rxbuf);
-		bmac_emergency_rxbuf = NULL;
-	}
+	kfree(bmac_emergency_rxbuf);
+	bmac_emergency_rxbuf = NULL;
 }
 
 MODULE_AUTHOR("Randy Gobbel/Paul Mackerras");