USB: misc: ldusb: 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.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
index 5e950b9..8208496 100644 (file)
--- a/drivers/usb/misc/ldusb.c
+++ b/drivers/usb/misc/ldusb.c
@@ -219,16 +219,17 @@ static void ld_usb_interrupt_in_callback(struct urb *urb)
        struct ld_usb *dev = urb->context;
        size_t *actual_buffer;
        unsigned int next_ring_head;
+       int status = urb->status;
        int retval;
 
-       if (urb->status) {
-               if (urb->status == -ENOENT ||
-                   urb->status == -ECONNRESET ||
-                   urb->status == -ESHUTDOWN) {
+       if (status) {
+               if (status == -ENOENT ||
+                   status == -ECONNRESET ||
+                   status == -ESHUTDOWN) {
                        goto exit;
                } else {
                        dbg_info(&dev->intf->dev, "%s: nonzero status received: %d\n",
-                                __FUNCTION__, urb->status);
+                                __FUNCTION__, status);
                        spin_lock(&dev->rbsl);
                        goto resubmit; /* maybe we can recover */
                }
@@ -275,14 +276,15 @@ exit:
 static void ld_usb_interrupt_out_callback(struct urb *urb)
 {
        struct ld_usb *dev = urb->context;
+       int status = urb->status;
 
        /* sync/async unlink faults aren't errors */
-       if (urb->status && !(urb->status == -ENOENT ||
-                            urb->status == -ECONNRESET ||
-                            urb->status == -ESHUTDOWN))
+       if (status && !(status == -ENOENT ||
+                       status == -ECONNRESET ||
+                       status == -ESHUTDOWN))
                dbg_info(&dev->intf->dev,
                         "%s - nonzero write interrupt status received: %d\n",
-                        __FUNCTION__, urb->status);
+                        __FUNCTION__, status);
 
        dev->interrupt_out_busy = 0;
        wake_up_interruptible(&dev->write_wait);