USB: appledisplay: Deletion of a check before backlight_device_unregister()

The backlight_device_unregister() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index b3d245ef46ef..a0a3827b4aff 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -329,7 +329,7 @@ error:
                                         pdata->urbdata, pdata->urb->transfer_dma);
                         usb_free_urb(pdata->urb);
                 }
-                if (pdata->bd && !IS_ERR(pdata->bd))
+                if (!IS_ERR(pdata->bd))
                         backlight_device_unregister(pdata->bd);
                 kfree(pdata->msgdata);
         }