1 files changed, 20 insertions, 34 deletions

diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index b4bd2411c666..7c5f4e32c920 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -347,13 +347,8 @@ usbtmc_abort_bulk_out_check_status:
         goto exit;
 
 usbtmc_abort_bulk_out_clear_halt:
-        rv = usb_control_msg(data->usb_dev,
-                             usb_sndctrlpipe(data->usb_dev, 0),
-                             USB_REQ_CLEAR_FEATURE,
-                             USB_DIR_OUT | USB_TYPE_STANDARD |
-                             USB_RECIP_ENDPOINT,
-                             USB_ENDPOINT_HALT, data->bulk_out, buffer,
-                             0, USBTMC_TIMEOUT);
+        rv = usb_clear_halt(data->usb_dev,
+                            usb_sndbulkpipe(data->usb_dev, data->bulk_out));
 
         if (rv < 0) {
                 dev_err(dev, "usb_control_msg returned %d\n", rv);
@@ -562,10 +557,16 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf,
                 n_bytes = roundup(12 + this_part, 4);
                 memset(buffer + 12 + this_part, 0, n_bytes - (12 + this_part));
 
-                retval = usb_bulk_msg(data->usb_dev,
-                                      usb_sndbulkpipe(data->usb_dev,
-                                                      data->bulk_out),
-                                      buffer, n_bytes, &actual, USBTMC_TIMEOUT);
+                do {
+                        retval = usb_bulk_msg(data->usb_dev,
+                                              usb_sndbulkpipe(data->usb_dev,
+                                                              data->bulk_out),
+                                              buffer, n_bytes,
+                                              &actual, USBTMC_TIMEOUT);
+                        if (retval != 0)
+                                break;
+                        n_bytes -= actual;
+                } while (n_bytes);
 
                 data->bTag_last_write = data->bTag;
                 data->bTag++;
@@ -702,14 +703,8 @@ usbtmc_clear_check_status:
 
 usbtmc_clear_bulk_out_halt:
 
-        rv = usb_control_msg(data->usb_dev,
-                             usb_sndctrlpipe(data->usb_dev, 0),
-                             USB_REQ_CLEAR_FEATURE,
-                             USB_DIR_OUT | USB_TYPE_STANDARD |
-                             USB_RECIP_ENDPOINT,
-                             USB_ENDPOINT_HALT,
-                             data->bulk_out, buffer, 0,
-                             USBTMC_TIMEOUT);
+        rv = usb_clear_halt(data->usb_dev,
+                            usb_sndbulkpipe(data->usb_dev, data->bulk_out));
         if (rv < 0) {
                 dev_err(dev, "usb_control_msg returned %d\n", rv);
                 goto exit;
@@ -730,13 +725,8 @@ static int usbtmc_ioctl_clear_out_halt(struct usbtmc_device_data *data)
         if (!buffer)
                 return -ENOMEM;
 
-        rv = usb_control_msg(data->usb_dev,
-                             usb_sndctrlpipe(data->usb_dev, 0),
-                             USB_REQ_CLEAR_FEATURE,
-                             USB_DIR_OUT | USB_TYPE_STANDARD |
-                             USB_RECIP_ENDPOINT,
-                             USB_ENDPOINT_HALT, data->bulk_out,
-                             buffer, 0, USBTMC_TIMEOUT);
+        rv = usb_clear_halt(data->usb_dev,
+                            usb_sndbulkpipe(data->usb_dev, data->bulk_out));
 
         if (rv < 0) {
                 dev_err(&data->usb_dev->dev, "usb_control_msg returned %d\n",
@@ -759,12 +749,8 @@ static int usbtmc_ioctl_clear_in_halt(struct usbtmc_device_data *data)
         if (!buffer)
                 return -ENOMEM;
 
-        rv = usb_control_msg(data->usb_dev, usb_sndctrlpipe(data->usb_dev, 0),
-                             USB_REQ_CLEAR_FEATURE,
-                             USB_DIR_OUT | USB_TYPE_STANDARD |
-                             USB_RECIP_ENDPOINT,
-                             USB_ENDPOINT_HALT, data->bulk_in, buffer, 0,
-                             USBTMC_TIMEOUT);
+        rv = usb_clear_halt(data->usb_dev,
+                            usb_rcvbulkpipe(data->usb_dev, data->bulk_in));
 
         if (rv < 0) {
                 dev_err(&data->usb_dev->dev, "usb_control_msg returned %d\n",
@@ -1109,13 +1095,13 @@ static void usbtmc_disconnect(struct usb_interface *intf)
         kref_put(&data->kref, usbtmc_delete);
 }
 
-static int usbtmc_suspend (struct usb_interface *intf, pm_message_t message)
+static int usbtmc_suspend(struct usb_interface *intf, pm_message_t message)
 {
         /* this driver does not have pending URBs */
         return 0;
 }
 
-static int usbtmc_resume (struct usb_interface *intf)
+static int usbtmc_resume(struct usb_interface *intf)
 {
         return 0;
 }