[PATCH 1/3] Input: twl4030-vibra: fix sibling-node lookup

[Johan Hovold]

A helper purported to look up a child node based on its name was using
the wrong of-helper and ended up prematurely freeing the parent of-node
while searching the whole device tree depth-first starting at the parent
node.

Fixes: 64b9e4d803b1 ("input: twl4030-vibra: Support for DT booted kernel")
Fixes: e661d0a04462 ("Input: twl4030-vibra - fix ERROR: Bad of_node_put() 
warning")
Cc: stable <sta...@vger.kernel.org>     # 3.7
Cc: Peter Ujfalusi <peter.ujfal...@ti.com>
Cc: Marek Belisko <ma...@goldelico.com>
Signed-off-by: Johan Hovold <jo...@kernel.org>
---
 drivers/input/misc/twl4030-vibra.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/input/misc/twl4030-vibra.c 
b/drivers/input/misc/twl4030-vibra.c
index 6c51d404874b..c37aea9ac272 100644
--- a/drivers/input/misc/twl4030-vibra.c
+++ b/drivers/input/misc/twl4030-vibra.c
@@ -178,12 +178,14 @@ static SIMPLE_DEV_PM_OPS(twl4030_vibra_pm_ops,
                         twl4030_vibra_suspend, twl4030_vibra_resume);
 
 static bool twl4030_vibra_check_coexist(struct twl4030_vibra_data *pdata,
-                             struct device_node *node)
+                             struct device_node *parent)
 {
+       struct device_node *node;
+
        if (pdata && pdata->coexist)
                return true;
 
-       node = of_find_node_by_name(node, "codec");
+       node = of_get_child_by_name(parent, "codec");
        if (node) {
                of_node_put(node);
                return true;
-- 
2.15.0