Thread (3 messages) 3 messages, 3 authors, 2014-08-08
STALE4330d

[PATCH 2/14] net: axienet: delete unneeded test before of_node_put

From: Julia Lawall <hidden>
Date: 2014-08-08 10:15:21
Also in: kernel-janitors, lkml, netdev
Subsystem: networking drivers, the rest, xilinx axi ethernet driver · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Radhey Shyam Pandey

From: Julia Lawall <redacted>

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

Suggested by Uwe Kleine-K?nig.

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 <redacted>

---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 7b0a735..30e8608 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -1630,8 +1630,7 @@ static int axienet_of_remove(struct platform_device *op)
 	axienet_mdio_teardown(lp);
 	unregister_netdev(ndev);
 
-	if (lp->phy_node)
-		of_node_put(lp->phy_node);
+	of_node_put(lp->phy_node);
 	lp->phy_node = NULL;
 
 	iounmap(lp->regs);
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