USB: serial: generic: clean up urb->status usage

This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.


Cc: <linux-usb-devel@lists.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index b09bed4b77d3..88a2c7dce335 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -325,11 +325,13 @@ void usb_serial_generic_read_bulk_callback (struct urb *urb)
 {
         struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
         unsigned char *data = urb->transfer_buffer;
+        int status = urb->status;
 
         dbg("%s - port %d", __FUNCTION__, port->number);
 
-        if (unlikely(urb->status != 0)) {
-                dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status);
+        if (unlikely(status != 0)) {
+                dbg("%s - nonzero read bulk status received: %d",
+                    __FUNCTION__, status);
                 return;
         }
 
@@ -347,12 +349,14 @@ EXPORT_SYMBOL_GPL(usb_serial_generic_read_bulk_callback);
 void usb_serial_generic_write_bulk_callback (struct urb *urb)
 {
         struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        int status = urb->status;
 
         dbg("%s - port %d", __FUNCTION__, port->number);
 
         port->write_urb_busy = 0;
-        if (urb->status) {
-                dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status);
+        if (status) {
+                dbg("%s - nonzero write bulk status received: %d",
+                    __FUNCTION__, status);
                 return;
         }