remove pointless NULL check before calling kfree

Signed-off-by: Vincent Hanquez <vincent@xensource.com>

linux-2.6-xen-sparse/drivers/xen/blkback/xenbus.c

@@ -48,8 +48,7 @@ static int blkback_remove(struct xenbus_device *dev)
 	unregister_xenbus_watch(&be->backend_watch);
 	if (be->blkif)
 		blkif_put(be->blkif);
-	if (be->frontpath)
-		kfree(be->frontpath);
+	kfree(be->frontpath);
 	kfree(be);
 	return 0;
 }
@@ -255,8 +254,7 @@ static int blkback_probe(struct xenbus_device *dev,
  free_be:
 	if (be->backend_watch.node)
 		unregister_xenbus_watch(&be->backend_watch);
-	if (frontend)
-		kfree(frontend);
+	kfree(frontend);
 	kfree(be);
 	return err;
 }

linux-2.6-xen-sparse/drivers/xen/blkfront/blkfront.c

@@ -608,8 +608,7 @@ static int talk_to_backend(struct xenbus_device *dev,
 	}
 
  out:
-	if (backend)
-		kfree(backend);
+	kfree(backend);
 	return err;
 
  abort_transaction:

linux-2.6-xen-sparse/drivers/xen/blktap/xenbus.c

@@ -52,8 +52,7 @@ static int blkback_remove(struct xenbus_device *dev)
 	unregister_xenbus_watch(&be->backend_watch);
 	if (be->blkif)
 		blkif_put(be->blkif);
-	if (be->frontpath)
-		kfree(be->frontpath);
+	kfree(be->frontpath);
 	kfree(be);
 	return 0;
 }
@@ -200,8 +199,7 @@ static int blkback_probe(struct xenbus_device *dev,
  free_be:
 	if (be->backend_watch.node)
 		unregister_xenbus_watch(&be->backend_watch);
-	if (frontend)
-		kfree(frontend);
+	kfree(frontend);
 	kfree(be);
 	return err;
 }

linux-2.6-xen-sparse/drivers/xen/netback/loopback.c

@@ -160,10 +160,8 @@ static int __init make_loopback(int i)
 	return 0;
 
  fail:
-	if (dev1 != NULL)
-		kfree(dev1);
-	if (dev2 != NULL)
-		kfree(dev2);
+	kfree(dev1);
+	kfree(dev2);
 	return err;
 }
 

linux-2.6-xen-sparse/drivers/xen/netback/xenbus.c

@@ -50,8 +50,7 @@ static int netback_remove(struct xenbus_device *dev)
 	unregister_xenbus_watch(&be->backend_watch);
 	if (be->netif)
 		netif_disconnect(be->netif);
-	if (be->frontpath)
-		kfree(be->frontpath);
+	kfree(be->frontpath);
 	kfree(be);
 	return 0;
 }
@@ -270,8 +269,7 @@ static int netback_probe(struct xenbus_device *dev,
  free_be:
 	if (be->backend_watch.node)
 		unregister_xenbus_watch(&be->backend_watch);
-	if (frontend)
-		kfree(frontend);
+	kfree(frontend);
 	kfree(be);
 	return err;
 }

linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c

@@ -1232,8 +1232,7 @@ static int talk_to_backend(struct xenbus_device *dev,
 	netif_state = NETIF_STATE_CONNECTED;
 
  out:
-	if (backend)
-		kfree(backend);
+	kfree(backend);
 	return err;
 
  abort_transaction:

linux-2.6-xen-sparse/drivers/xen/tpmback/tpmback.c

@@ -148,9 +148,7 @@ static void inline
 packet_free(struct packet *pak)
 {
 	del_singleshot_timer_sync(&pak->processing_timer);
-	if (pak->data_buffer) {
-		kfree(pak->data_buffer);
-	}
+	kfree(pak->data_buffer);
 	/*
 	 * cannot do tpmif_put(pak->tpmif); bad things happen
 	 * on the last tpmif_put()

linux-2.6-xen-sparse/drivers/xen/tpmback/xenbus.c

@@ -52,8 +52,7 @@ static int tpmback_remove(struct xenbus_device *dev)
 		tpmif_put(be->tpmif);
 	}
 
-	if (be->frontpath)
-		kfree(be->frontpath);
+	kfree(be->frontpath);
 	kfree(be);
 	return 0;
 }
@@ -243,8 +242,7 @@ static int tpmback_probe(struct xenbus_device *dev,
 free_be:
 	if (be->backend_watch.node)
 		unregister_xenbus_watch(&be->backend_watch);
-	if (frontend)
-		kfree(frontend);
+	kfree(frontend);
 	kfree(be);
 	return err;
 }

linux-2.6-xen-sparse/drivers/xen/tpmfront/tpmfront.c

@@ -363,8 +363,7 @@ static int talk_to_backend(struct xenbus_device *dev,
 	}
 
 out:
-	if (backend)
-		kfree(backend);
+	kfree(backend);
 	return err;
 
 abort_transaction:

linux-2.6-xen-sparse/drivers/xen/usbback/usbback.c

@@ -781,8 +781,7 @@ static void dispatch_usb_io(usbif_priv_t *up, usbif_request_t *req)
     return;
     
  no_mem:
-    if ( setup != NULL )
-        kfree(setup);
+    kfree(setup);
     make_response(up, req->id, req->operation, -ENOMEM, 0, 0);
     return;
 } 

linux-2.6-xen-sparse/drivers/xen/usbfront/usbfront.c

@@ -1720,8 +1720,7 @@ static int __init xhci_hcd_init(void)
 	return 0;
 
 up_failed:
-	if (errbuf)
-		kfree(errbuf);
+	kfree(errbuf);
 
 errbuf_failed:
 	return retval;