linux-kernel - [PATCH] dwc_eth_qos: Delete an unnecessary check before the function call "of_node

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Message-ID: <563E1A18.101@users.sourceforge.net>
Date:	Sat, 7 Nov 2015 16:34:48 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	David Miller <davem@...emloft.net>,
	Lars Persson <lars.persson@...s.com>, netdev@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] dwc_eth_qos: Delete an unnecessary check before the function
 call "of_node_put"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 7 Nov 2015 16:30:34 +0100

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@...rs.sourceforge.net>
---
 drivers/net/ethernet/synopsys/dwc_eth_qos.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/synopsys/dwc_eth_qos.c b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
index 85b3326..9066d7a 100644
--- a/drivers/net/ethernet/synopsys/dwc_eth_qos.c
+++ b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
@@ -2970,8 +2970,7 @@ err_out_unregister_netdev:
 err_out_clk_dis_aper:
 	clk_disable_unprepare(lp->apb_pclk);
 err_out_free_netdev:
-	if (lp->phy_node)
-		of_node_put(lp->phy_node);
+	of_node_put(lp->phy_node);
 	free_netdev(ndev);
 	platform_set_drvdata(pdev, NULL);
 	return ret;
-- 
2.6.2

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