USB: serial: cypress_m8: 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: Lonnie Mendez <dignome@gmail.com>
Cc: Neil Whelchel <koyama@firstlight.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 57b8e27285fc007dda4805d0447d51fb0096e43a..163386336a5daa76852eda408974ace308bf2176 100644 (file)
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -1275,10 +1275,11 @@ static void cypress_read_int_callback(struct urb *urb)
        int bytes = 0;
        int result;
        int i = 0;
+       int status = urb->status;
 
        dbg("%s - port %d", __FUNCTION__, port->number);
 
-       switch (urb->status) {
+       switch (status) {
        case 0: /* success */
                break;
        case -ECONNRESET:
@@ -1292,7 +1293,7 @@ static void cypress_read_int_callback(struct urb *urb)
        default:
                /* something ugly is going on... */
                dev_err(&urb->dev->dev,"%s - unexpected nonzero read status received: %d\n",
-                       __FUNCTION__,urb->status);
+                       __FUNCTION__, status);
                cypress_set_dead(port);
                return;
        }
@@ -1419,10 +1420,11 @@ static void cypress_write_int_callback(struct urb *urb)
        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
        struct cypress_private *priv = usb_get_serial_port_data(port);
        int result;
+       int status = urb->status;
 
        dbg("%s - port %d", __FUNCTION__, port->number);
-       
-       switch (urb->status) {
+
+       switch (status) {
                case 0:
                        /* success */
                        break;
@@ -1430,7 +1432,8 @@ static void cypress_write_int_callback(struct urb *urb)
                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);
                        priv->write_urb_in_use = 0;
                        return;
                case -EPIPE: /* no break needed; clear halt and resubmit */
@@ -1438,7 +1441,8 @@ static void cypress_write_int_callback(struct urb *urb)
                                break;
                        usb_clear_halt(port->serial->dev, 0x02);
                        /* error in the urb, so we have to resubmit it */
-                       dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status);
+                       dbg("%s - nonzero write bulk status received: %d",
+                           __FUNCTION__, status);
                        port->interrupt_out_urb->transfer_buffer_length = 1;
                        port->interrupt_out_urb->dev = port->serial->dev;
                        result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC);
@@ -1450,7 +1454,7 @@ static void cypress_write_int_callback(struct urb *urb)
                        break;
                default:
                        dev_err(&urb->dev->dev,"%s - unexpected nonzero write status received: %d\n",
-                               __FUNCTION__,urb->status);
+                               __FUNCTION__, status);
                        cypress_set_dead(port);
                        break;
        }