lkml.org 
[lkml]   [2015]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/3] soc: qcom: smd: delete unneeded of_node_put
Date
Device node iterators perform an of_node_put on each iteration, so putting
an of_node_put before a continue results in a double put.

A simplified version of the semantic match that finds this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
iterator i;
@@

i(..., child, ...) {
... when != of_node_get(child)
* of_node_put(child);
...
* continue;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
drivers/soc/qcom/smd.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/soc/qcom/smd.c b/drivers/soc/qcom/smd.c
index 6da0463..8c7a489 100644
--- a/drivers/soc/qcom/smd.c
+++ b/drivers/soc/qcom/smd.c
@@ -916,10 +916,8 @@ static struct device_node *qcom_smd_match_channel(struct device_node *edge_node,
for_each_available_child_of_node(edge_node, child) {
key = "qcom,smd-channels";
ret = of_property_read_string(child, key, &name);
- if (ret) {
- of_node_put(child);
+ if (ret)
continue;
- }

if (strcmp(name, channel) == 0)
return child;


\
 
 \ /
  Last update: 2015-10-12 23:21    [W:0.071 / U:0.456 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site