usb: legousbtower free kill urb cleanup

Hello,

- usb_free_urb() cleanup
- usb_kill_urb() cleanup

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 13 deletions

diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index f8611997bd77..5dce797bddb7 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -317,12 +317,8 @@ static inline void tower_delete (struct lego_usb_tower *dev)
         tower_abort_transfers (dev);
 
         /* free data structures */
-        if (dev->interrupt_in_urb != NULL) {
-                usb_free_urb (dev->interrupt_in_urb);
-        }
-        if (dev->interrupt_out_urb != NULL) {
-                usb_free_urb (dev->interrupt_out_urb);
-        }
+        usb_free_urb(dev->interrupt_in_urb);
+        usb_free_urb(dev->interrupt_out_urb);
         kfree (dev->read_buffer);
         kfree (dev->interrupt_in_buffer);
         kfree (dev->interrupt_out_buffer);
@@ -502,15 +498,11 @@ static void tower_abort_transfers (struct lego_usb_tower *dev)
         if (dev->interrupt_in_running) {
                 dev->interrupt_in_running = 0;
                 mb();
-                if (dev->interrupt_in_urb != NULL && dev->udev) {
+                if (dev->udev)
                         usb_kill_urb (dev->interrupt_in_urb);
-                }
-        }
-        if (dev->interrupt_out_busy) {
-                if (dev->interrupt_out_urb != NULL && dev->udev) {
-                        usb_kill_urb (dev->interrupt_out_urb);
-                }
         }
+        if (dev->interrupt_out_busy && dev->udev)
+                usb_kill_urb(dev->interrupt_out_urb);
 
 exit:
         dbg(2, "%s: leave", __FUNCTION__);