From: Julia Lawall <Julia.Lawall@lip6.fr>
To: Sunil Goutham <sgoutham@cavium.com>
Cc: kernel-janitors@vger.kernel.org, Robert Richter <rric@kernel.org>,
linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Andrew Lunn <andrew@lunn.ch>, Bjorn Helgaas <bhelgaas@google.com>,
Jason Cooper <jason@lakedaemon.net>
Subject: [PATCH 1/8] net: thunderx: add missing of_node_put
Date: Sun, 25 Oct 2015 14:57:00 +0100 [thread overview]
Message-ID: <1445781427-7110-2-git-send-email-Julia.Lawall@lip6.fr> (raw)
In-Reply-To: <1445781427-7110-1-git-send-email-Julia.Lawall@lip6.fr>
for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.
A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):
// <smpl>
@@
local idexpression r.n;
expression r,e;
@@
for_each_child_of_node(r,n) {
...
(
of_node_put(n);
|
e = n
|
+ of_node_put(n);
? break;
)
...
}
... when != n
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
---
drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index 574c492..180aa9f 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -977,8 +977,10 @@ static int bgx_init_of_phy(struct bgx *bgx)
SET_NETDEV_DEV(&bgx->lmac[lmac].netdev, &bgx->pdev->dev);
bgx->lmac[lmac].lmacid = lmac;
lmac++;
- if (lmac == MAX_LMAC_PER_BGX)
+ if (lmac == MAX_LMAC_PER_BGX) {
+ of_node_put(np_child);
break;
+ }
}
return 0;
}
next prev parent reply other threads:[~2015-10-25 14:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-25 13:56 [PATCH 0/8] add missing of_node_put Julia Lawall
2015-10-25 13:57 ` Julia Lawall [this message]
2015-10-25 13:57 ` [PATCH 2/8] net: netcp: " Julia Lawall
2015-10-25 13:57 ` [PATCH 3/8] netdev/phy: " Julia Lawall
2015-10-25 13:57 ` [PATCH 4/8] net: phy: mdio: " Julia Lawall
2015-10-25 13:57 ` [PATCH 5/8] [media] v4l: xilinx-vipp: " Julia Lawall
2015-10-26 1:20 ` Laurent Pinchart
2015-10-25 13:57 ` [PATCH 6/8] [media] v4l: xilinx-tpg: " Julia Lawall
2015-10-26 1:19 ` Laurent Pinchart
2015-10-25 13:57 ` [PATCH 7/8] ath6kl: " Julia Lawall
2015-10-25 13:57 ` [PATCH 8/8] net: mv643xx_eth: " Julia Lawall
2015-10-27 5:08 ` [PATCH 0/8] " David Miller
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