From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 24 Nov 2014 21:58:48 +0000 (+0100)
Subject: staging: olpc_dcon: Deletion of a check before backlight_device_unregister()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=16ceb7283987d8d7cad260bacf49f4197c625504;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

staging: olpc_dcon: 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>
---

diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c
index eb83b28b8cd1..6a9a8815477c 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon.c
@@ -682,8 +682,7 @@ static int dcon_remove(struct i2c_client *client)
 
 	free_irq(DCON_IRQ, dcon);
 
-	if (dcon->bl_dev)
-		backlight_device_unregister(dcon->bl_dev);
+	backlight_device_unregister(dcon->bl_dev);
 
 	if (dcon_device != NULL)
 		platform_device_unregister(dcon_device);