[PATCH 6/14] powerpc/fsl: fsl_soc: delete unneeded test before of_node_put

[PATCH 6/14] powerpc/fsl: fsl_soc: delete unneeded test before of_node_put

[Julia Lawall]

From: Julia Lawall <Julia.Lawall@lip6.fr>

Of_node_put supports NULL as its argument, so the initial test is not
necessary.

Suggested by Uwe Kleine-König.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
@@

-if (e)
   of_node_put(e);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
 arch/powerpc/sysdev/fsl_soc.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index ffd1169..bfb5b6c 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -197,8 +197,7 @@ static int __init setup_rstcr(void)
 	if (!rstcr && ppc_md.restart == fsl_rstcr_restart)
 		printk(KERN_ERR "No RSTCR register, warm reboot won't work\n");
 
-	if (np)
-		of_node_put(np);
+	of_node_put(np);
 
 	return 0;
 }

Re: [PATCH 6/14] powerpc/fsl: fsl_soc: delete unneeded test before of_node_put

[Benjamin Herrenschmidt]

On Fri, 2014-08-08 at 12:07 +0200, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@lip6.fr>
> 
> Of_node_put supports NULL as its argument, so the initial test is not
> necessary.
> 
> Suggested by Uwe Kleine-König.
> 
> The semantic patch that fixes this problem is as follows:
> (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> expression e;
> @@
> 
> -if (e)
>    of_node_put(e);
> // </smpl>
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

> ---
>  arch/powerpc/sysdev/fsl_soc.c |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
> index ffd1169..bfb5b6c 100644
> --- a/arch/powerpc/sysdev/fsl_soc.c
> +++ b/arch/powerpc/sysdev/fsl_soc.c
> @@ -197,8 +197,7 @@ static int __init setup_rstcr(void)
>  	if (!rstcr && ppc_md.restart == fsl_rstcr_restart)
>  		printk(KERN_ERR "No RSTCR register, warm reboot won't work\n");
>  
> -	if (np)
> -		of_node_put(np);
> +	of_node_put(np);
>  
>  	return 0;
>  }
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/