From cc331d37fe3a7b6db086721b0e9cac1ea2e03ebf Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 25 Oct 2015 11:57:05 -0200 Subject: [PATCH] [media] v4l: xilinx-tpg: add missing of_node_put 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): // @@ expression root,e; local idexpression child; @@ for_each_child_of_node(root, child) { ... when != of_node_put(child) when != e = child ( return child; | + of_node_put(child); ? return ...; ) ... } // Signed-off-by: Julia Lawall Reviewed-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/xilinx/xilinx-tpg.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/xilinx/xilinx-tpg.c b/drivers/media/platform/xilinx/xilinx-tpg.c index b5f7d5ecb7f6..8bd7e3736019 100644 --- a/drivers/media/platform/xilinx/xilinx-tpg.c +++ b/drivers/media/platform/xilinx/xilinx-tpg.c @@ -731,6 +731,7 @@ static int xtpg_parse_of(struct xtpg_device *xtpg) format = xvip_of_get_format(port); if (IS_ERR(format)) { dev_err(dev, "invalid format in DT"); + of_node_put(port); return PTR_ERR(format); } @@ -739,6 +740,7 @@ static int xtpg_parse_of(struct xtpg_device *xtpg) xtpg->vip_format = format; } else if (xtpg->vip_format != format) { dev_err(dev, "in/out format mismatch in DT"); + of_node_put(port); return -EINVAL; }