staging: usbip: remove unnecessary lines and extra return statements

Also, fix a few alignment issues that were originally missed.
Signed-off-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/usbip/stub.h

@@ -77,6 +77,7 @@ struct stub_unlink {
 };
 
 #define BUSID_SIZE 20
+
 struct bus_id_priv {
 	char name[BUSID_SIZE];
 	char status;

drivers/staging/usbip/stub_dev.c

@@ -207,10 +207,11 @@ static void stub_shutdown_connection(struct usbip_device *ud)
 	if (ud->tcp_tx && !task_is_dead(ud->tcp_tx))
 		kthread_stop(ud->tcp_tx);
 
-	/* 2. close the socket */
 	/*
-	 * tcp_socket is freed after threads are killed.
-	 * So usbip_xmit do not touch NULL socket.
+	 * 2. close the socket
+	 *
+	 * tcp_socket is freed after threads are killed so that usbip_xmit does
+	 * not touch NULL socket.
 	 */
 	if (ud->tcp_socket) {
 		sock_release(ud->tcp_socket);
@@ -230,8 +231,8 @@ static void stub_shutdown_connection(struct usbip_device *ud)
 			list_del(&unlink->list);
 			kfree(unlink);
 		}
-		list_for_each_entry_safe(unlink, tmp,
-						 &sdev->unlink_free, list) {
+		list_for_each_entry_safe(unlink, tmp, &sdev->unlink_free,
+					 list) {
 			list_del(&unlink->list);
 			kfree(unlink);
 		}
@@ -258,22 +259,17 @@ static void stub_device_reset(struct usbip_device *ud)
 
 	/* try to reset the device */
 	ret = usb_reset_device(udev);
-
 	usb_unlock_device(udev);
 
 	spin_lock(&ud->lock);
 	if (ret) {
 		dev_err(&udev->dev, "device reset\n");
 		ud->status = SDEV_ST_ERROR;
-
 	} else {
 		dev_info(&udev->dev, "device reset\n");
 		ud->status = SDEV_ST_AVAILABLE;
-
 	}
 	spin_unlock(&ud->lock);
-
-	return;
 }
 
 static void stub_device_unusable(struct usbip_device *ud)
@@ -420,7 +416,6 @@ static int stub_probe(struct usb_interface *interface,
 				udev_busid);
 			usb_set_intfdata(interface, NULL);
 			busid_priv->interf_count--;
-
 			return err;
 		}
 
@@ -443,7 +438,6 @@ static int stub_probe(struct usb_interface *interface,
 	/* set private data to usb_interface */
 	usb_set_intfdata(interface, sdev);
 	busid_priv->interf_count++;
-
 	busid_priv->sdev = sdev;
 
 	err = stub_add_files(&interface->dev);
@@ -453,7 +447,6 @@ static int stub_probe(struct usb_interface *interface,
 		usb_put_intf(interface);
 
 		busid_priv->interf_count = 0;
-
 		busid_priv->sdev = NULL;
 		stub_device_free(sdev);
 		return err;

drivers/staging/usbip/stub_main.c

@@ -25,9 +25,7 @@
 #define DRIVER_AUTHOR "Takahiro Hirofuchi"
 #define DRIVER_DESC "USB/IP Host Driver"
 
-/* stub_priv is allocated from stub_priv_cache */
 struct kmem_cache *stub_priv_cache;
-
 /*
  * busid_tables defines matching busids that usbip can grab. A user can change
  * dynamically what device is locally used and what device is exported to a
@@ -42,7 +40,6 @@ int match_busid(const char *busid)
 	int i;
 
 	spin_lock(&busid_table_lock);
-
 	for (i = 0; i < MAX_BUSID; i++)
 		if (busid_table[i].name[0])
 			if (!strncmp(busid_table[i].name, busid, BUSID_SIZE)) {
@@ -50,7 +47,6 @@ int match_busid(const char *busid)
 				spin_unlock(&busid_table_lock);
 				return 0;
 			}
-
 	spin_unlock(&busid_table_lock);
 
 	return 1;
@@ -61,7 +57,6 @@ struct bus_id_priv *get_busid_priv(const char *busid)
 	int i;
 
 	spin_lock(&busid_table_lock);
-
 	for (i = 0; i < MAX_BUSID; i++)
 		if (busid_table[i].name[0])
 			if (!strncmp(busid_table[i].name, busid, BUSID_SIZE)) {
@@ -69,7 +64,6 @@ struct bus_id_priv *get_busid_priv(const char *busid)
 				spin_unlock(&busid_table_lock);
 				return &(busid_table[i]);
 			}
-
 	spin_unlock(&busid_table_lock);
 
 	return NULL;
@@ -81,15 +75,12 @@ static ssize_t show_match_busid(struct device_driver *drv, char *buf)
 	char *out = buf;
 
 	spin_lock(&busid_table_lock);
-
 	for (i = 0; i < MAX_BUSID; i++)
 		if (busid_table[i].name[0])
 			out += sprintf(out, "%s ", busid_table[i].name);
-
 	spin_unlock(&busid_table_lock);
 
 	out += sprintf(out, "\n");
-
 	return out - buf;
 }
 
@@ -101,7 +92,6 @@ static int add_match_busid(char *busid)
 		return 0;
 
 	spin_lock(&busid_table_lock);
-
 	for (i = 0; i < MAX_BUSID; i++)
 		if (!busid_table[i].name[0]) {
 			strncpy(busid_table[i].name, busid, BUSID_SIZE);
@@ -111,7 +101,6 @@ static int add_match_busid(char *busid)
 			spin_unlock(&busid_table_lock);
 			return 0;
 		}
-
 	spin_unlock(&busid_table_lock);
 
 	return -1;
@@ -122,7 +111,6 @@ int del_match_busid(char *busid)
 	int i;
 
 	spin_lock(&busid_table_lock);
-
 	for (i = 0; i < MAX_BUSID; i++)
 		if (!strncmp(busid_table[i].name, busid, BUSID_SIZE)) {
 			/* found */
@@ -135,7 +123,6 @@ int del_match_busid(char *busid)
 			spin_unlock(&busid_table_lock);
 			return 0;
 		}
-
 	spin_unlock(&busid_table_lock);
 
 	return -1;

drivers/staging/usbip/stub_tx.c

@@ -97,13 +97,12 @@ void stub_complete(struct urb *urb)
 
 	/* link a urb to the queue of tx. */
 	spin_lock_irqsave(&sdev->priv_lock, flags);
-
 	if (priv->unlinking) {
 		stub_enqueue_ret_unlink(sdev, priv->seqnum, urb->status);
 		stub_free_priv_and_urb(priv);
-	} else
+	} else {
 		list_move_tail(&priv->list, &sdev->priv_tx);
-
+	}
 	spin_unlock_irqrestore(&sdev->priv_lock, flags);
 
 	/* wake up tx_thread */

drivers/staging/usbip/usbip_common.c

@@ -334,8 +334,8 @@ void usbip_dump_header(struct usbip_header *pdu)
 EXPORT_SYMBOL_GPL(usbip_dump_header);
 
 /* Send/receive messages over TCP/IP. I refer drivers/block/nbd.c */
-int usbip_xmit(int send, struct socket *sock, char *buf,
-	       int size, int msg_flags)
+int usbip_xmit(int send, struct socket *sock, char *buf, int size,
+	       int msg_flags)
 {
 	int result;
 	struct msghdr msg;
@@ -628,8 +628,7 @@ void usbip_header_correct_endian(struct usbip_header *pdu, int send)
 EXPORT_SYMBOL_GPL(usbip_header_correct_endian);
 
 static void usbip_iso_pakcet_correct_endian(
-	struct usbip_iso_packet_descriptor *iso,
-	int send)
+		struct usbip_iso_packet_descriptor *iso, int send)
 {
 	/* does not need all members. but copy all simply. */
 	if (send) {

drivers/staging/usbip/vhci_hcd.c

@@ -639,9 +639,7 @@ static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
 	usb_hcd_unlink_urb_from_ep(hcd, urb);
 no_need_unlink:
 	spin_unlock_irqrestore(&the_controller->lock, flags);
-
 	usb_hcd_giveback_urb(vhci_to_hcd(the_controller), urb, urb->status);
-
 	return ret;
 }
 
@@ -1033,9 +1031,8 @@ static int vhci_bus_resume(struct usb_hcd *hcd)
 		hcd->state = HC_STATE_RUNNING;
 	}
 	spin_unlock_irq(&vhci->lock);
-	return rc;
 
-	return 0;
+	return rc;
 }
 
 #else

drivers/staging/usbip/vhci_rx.c

@@ -179,8 +179,6 @@ static void vhci_recv_ret_unlink(struct vhci_device *vdev,
 	}
 
 	kfree(unlink);
-
-	return;
 }
 
 static int vhci_priv_tx_empty(struct vhci_device *vdev)