From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Fri, 8 Aug 2014 10:07:45 +0000 (+0200)
Subject: powerpc/fsl: fsl_soc: delete unneeded test before of_node_put
X-Git-Tag: firefly_0821_release~176^2~2621^2~50
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4cdd641dddd0ecd93f7b84fc3622df83937f6094;p=firefly-linux-kernel-4.4.55.git

powerpc/fsl: fsl_soc: delete unneeded test before of_node_put

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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 1e04568da3b9..99269c041615 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;
 }