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[PATCH] Input-rmi_bus: Delete an unnecessary check before the function call "of_node_put"

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  [PATCH] Input-rmi_bus: Delete an unnecessary check before the  function call "of_node_put" SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-24 09:40 +0200
    Re: [PATCH] Input-rmi_bus: Delete an unnecessary check before the  function call "of_node_put" Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2016-07-25 20:40 +0200

#1449091 — [PATCH] Input-rmi_bus: Delete an unnecessary check before the function call "of_node_put"

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 24 Jul 2016 07:37:23 +0200

The of_node_put() 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>
---
 drivers/input/rmi4/rmi_bus.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c
index 253df96..a735806 100644
--- a/drivers/input/rmi4/rmi_bus.c
+++ b/drivers/input/rmi4/rmi_bus.c
@@ -232,10 +232,7 @@ err_put_device:
 void rmi_unregister_function(struct rmi_function *fn)
 {
 	device_del(&fn->dev);
-
-	if (fn->dev.of_node)
-		of_node_put(fn->dev.of_node);
-
+	of_node_put(fn->dev.of_node);
 	put_device(&fn->dev);
 }
 
-- 
2.9.2

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#1449735

On Sun, Jul 24, 2016 at 09:35:56AM +0200, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sun, 24 Jul 2016 07:37:23 +0200
> 
> The of_node_put() 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>

Applied, thank you.

> ---
>  drivers/input/rmi4/rmi_bus.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c
> index 253df96..a735806 100644
> --- a/drivers/input/rmi4/rmi_bus.c
> +++ b/drivers/input/rmi4/rmi_bus.c
> @@ -232,10 +232,7 @@ err_put_device:
>  void rmi_unregister_function(struct rmi_function *fn)
>  {
>  	device_del(&fn->dev);
> -
> -	if (fn->dev.of_node)
> -		of_node_put(fn->dev.of_node);
> -
> +	of_node_put(fn->dev.of_node);
>  	put_device(&fn->dev);
>  }
>  
> -- 
> 2.9.2
> 

-- 
Dmitry

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