USB: serial: mct_u232: 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>
Cc: Wolfgang Grandegger <wolfgang@ces.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 204f0f9..2a3fabc 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -516,10 +516,11 @@
struct usb_serial *serial = port->serial;
struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
- int status;
+ int retval;
+ int status = urb->status;
unsigned long flags;
- switch (urb->status) {
+ switch (status) {
case 0:
/* success */
break;
@@ -527,10 +528,12 @@
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+ dbg("%s - urb shutting down with status: %d",
+ __FUNCTION__, status);
return;
default:
- dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+ dbg("%s - nonzero urb status received: %d",
+ __FUNCTION__, status);
goto exit;
}
@@ -594,10 +597,10 @@
#endif
spin_unlock_irqrestore(&priv->lock, flags);
exit:
- status = usb_submit_urb (urb, GFP_ATOMIC);
- if (status)
+ retval = usb_submit_urb (urb, GFP_ATOMIC);
+ if (retval)
err ("%s - usb_submit_urb failed with result %d",
- __FUNCTION__, status);
+ __FUNCTION__, retval);
} /* mct_u232_read_int_callback */
static void mct_u232_set_termios (struct usb_serial_port *port,