openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

Input: twl6040-vibra - fix DT node memory management 

commit e7ec014a47 ("Input: twl6040-vibra - update for device tree support")

made the separate vibra DT node to a subnode of the twl6040.

It now calls of_find_node_by_name() to locate the "vibra" subnode.
This function has a side effect to call of_node_put on() for the twl6040
parent node passed in as a parameter. This causes trouble later on.

Solution: we must call of_node_get() before of_find_node_by_name()

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
H. Nikolaus Schaller 2016-05-09 17:01:01 -07:00 committed by Dmitry Torokhov
parent 6ae645d5fa
commit c52c545ead
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/input/misc/twl6040-vibra.c
View File

@ -257,6 +257,7 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
int vddvibr_uV = 0;
int error;
of_node_get(twl6040_core_dev->of_node);
twl6040_core_node = of_find_node_by_name(twl6040_core_dev->of_node,
"vibra");
if (!twl6040_core_node) {