[PATCH 13/14] fec_mpc52xx: delete unneeded test before of_node_put

From: Julia Lawall
Date: Fri Aug 08 2014 - 06:11:44 EST


From: Julia Lawall <Julia.Lawall@xxxxxxx>

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

Suggested by Uwe Kleine-KÃnig.

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@xxxxxxx>

---
drivers/net/ethernet/freescale/fec_mpc52xx.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_mpc52xx.c b/drivers/net/ethernet/freescale/fec_mpc52xx.c
index 9947765..ff55fbb 100644
--- a/drivers/net/ethernet/freescale/fec_mpc52xx.c
+++ b/drivers/net/ethernet/freescale/fec_mpc52xx.c
@@ -1015,8 +1015,7 @@ mpc52xx_fec_remove(struct platform_device *op)

unregister_netdev(ndev);

- if (priv->phy_node)
- of_node_put(priv->phy_node);
+ of_node_put(priv->phy_node);
priv->phy_node = NULL;

irq_dispose_mapping(ndev->irq);

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