[PATCH] media: platform: exynos4-is: media-dev: Add missing of_node_put

[Amitoj Kaur Chawla]

for_each_available_child_of_node and for_each_child_of_node perform an
of_node_get on each iteration, so to break out of the loop an of_node_put is
required.

Found using Coccinelle. The simplified version of the semantic patch
that is used for this is as follows:

// <smpl>
@@
local idexpression n;
expression e,r;
@@

 for_each_available_child_of_node(r,n) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1...@gmail.com>
---
 drivers/media/platform/exynos4-is/media-dev.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/exynos4-is/media-dev.c 
b/drivers/media/platform/exynos4-is/media-dev.c
index 4f5586a..09f6e54 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -430,8 +430,10 @@ static int fimc_md_register_sensor_entities(struct fimc_md 
*fmd)
                        continue;
 
                ret = fimc_md_parse_port_node(fmd, port, index);
-               if (ret < 0)
+               if (ret < 0) {
+                       of_node_put(node);
                        goto rpm_put;
+               }
                index++;
        }
 
@@ -442,8 +444,10 @@ static int fimc_md_register_sensor_entities(struct fimc_md 
*fmd)
 
        for_each_child_of_node(ports, node) {
                ret = fimc_md_parse_port_node(fmd, node, index);
-               if (ret < 0)
+               if (ret < 0) {
+                       of_node_put(node);
                        break;
+               }
                index++;
        }
 rpm_put:
@@ -651,8 +655,10 @@ static int fimc_md_register_platform_entities(struct 
fimc_md *fmd,
                        ret = fimc_md_register_platform_entity(fmd, pdev,
                                                        plat_entity);
                put_device(&pdev->dev);
-               if (ret < 0)
+               if (ret < 0) {
+                       of_node_put(node);
                        break;
+               }
        }
 
        return ret;
-- 
1.9.1