1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 65965587c812..619cc9975209 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -562,10 +562,16 @@ 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++;