[PATCH 7/14 v2] powerpc/4xx/cpm: delete unneeded test before of_node_put

From: Julia Lawall
Date: Mon Aug 11 2014 - 03:57:31 EST


From: Julia Lawall <Julia.Lawall@xxxxxxx>

Simplify the error path to avoid calling of_node_put when it is not needed.

The semantic patch that finds 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@xxxxxxx>

---
v2: new subject

arch/powerpc/sysdev/ppc4xx_cpm.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/sysdev/ppc4xx_cpm.c b/arch/powerpc/sysdev/ppc4xx_cpm.c
index 82e2cfe..ba95adf 100644
--- a/arch/powerpc/sysdev/ppc4xx_cpm.c
+++ b/arch/powerpc/sysdev/ppc4xx_cpm.c
@@ -281,7 +281,7 @@ static int __init cpm_init(void)
printk(KERN_ERR "cpm: could not parse dcr property for %s\n",
np->full_name);
ret = -EINVAL;
- goto out;
+ goto node_put;
}

cpm.dcr_host = dcr_map(np, dcr_base, dcr_len);
@@ -290,7 +290,7 @@ static int __init cpm_init(void)
printk(KERN_ERR "cpm: failed to map dcr property for %s\n",
np->full_name);
ret = -EINVAL;
- goto out;
+ goto node_put;
}

/* All 4xx SoCs with a CPM controller have one of two
@@ -330,9 +330,9 @@ static int __init cpm_init(void)

if (cpm.standby || cpm.suspend)
suspend_set_ops(&cpm_suspend_ops);
+node_put:
+ of_node_put(np);
out:
- if (np)
- of_node_put(np);
return ret;
}


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/