linux-kernel - [PATCH] IBM-EMAC: Delete an unnecessary check before the function call "of_dev

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Message-ID: <54D118BA.3080001@users.sourceforge.net>
Date:	Tue, 03 Feb 2015 19:51:38 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	netdev@...r.kernel.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] IBM-EMAC: Delete an unnecessary check before the function
 call "of_dev_put"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 3 Feb 2015 19:47:33 +0100

The of_dev_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@...rs.sourceforge.net>
---
 drivers/net/ethernet/ibm/emac/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 9388a83..162762d 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -2367,7 +2367,7 @@ static int emac_wait_deps(struct emac_instance *dev)
 	err = emac_check_deps(dev, deps) ? 0 : -ENODEV;
 	for (i = 0; i < EMAC_DEP_COUNT; i++) {
 		of_node_put(deps[i].node);
-		if (err && deps[i].ofdev)
+		if (err)
 			of_dev_put(deps[i].ofdev);
 	}
 	if (err == 0) {
-- 
2.2.2

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