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authorAndrew Duggan <aduggan@synaptics.com>2016-07-14 09:35:44 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2016-07-14 09:40:39 -0700
commit9624516db0f3ffcbd1ba1007775d068f54049773 (patch)
treeb676d77a5c13f372cda53cb4f05beee9362a9640
parent3e9161bfe0482f26efeaf584d5fd69398c69313c (diff)
Input: synaptics-rmi4 - use of_get_child_by_name() to fix refcount
Calling of_find_node_by_name() assumes that the caller has incremented the refcount of the of_node being passed in. Currently, the caller is not incrementing the refcount of the of_node which results in the node being prematurely freed when of_find_node_by_name() calls of_node_put() on it. Instead use of_get_child_by_name() which does not call put on the of_node. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
-rw-r--r--drivers/input/rmi4/rmi_bus.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c
index b368b0515c5a..253df96be427 100644
--- a/drivers/input/rmi4/rmi_bus.c
+++ b/drivers/input/rmi4/rmi_bus.c
@@ -157,11 +157,11 @@ static int rmi_function_match(struct device *dev, struct device_driver *drv)
static void rmi_function_of_probe(struct rmi_function *fn)
{
char of_name[9];
+ struct device_node *node = fn->rmi_dev->xport->dev->of_node;
snprintf(of_name, sizeof(of_name), "rmi4-f%02x",
fn->fd.function_number);
- fn->dev.of_node = of_find_node_by_name(
- fn->rmi_dev->xport->dev->of_node, of_name);
+ fn->dev.of_node = of_get_child_by_name(node, of_name);
}
#else
static inline void rmi_function_of_probe(struct rmi_function *fn)