[PATCH] media: tc358743: release device_node in tc358743_probe_of()

From: Alexey Khoroshilov
Date: Fri May 25 2018 - 17:54:19 EST


of_graph_get_next_endpoint() returns device_node with refcnt increased,
but these is no of_node_put() for it.

The patch adds one on error and normal paths.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
---
drivers/media/i2c/tc358743.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index 393bbbbbaad7..44c41933415a 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -1918,7 +1918,8 @@ static int tc358743_probe_of(struct tc358743_state *state)
endpoint = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(ep));
if (IS_ERR(endpoint)) {
dev_err(dev, "failed to parse endpoint\n");
- return PTR_ERR(endpoint);
+ ret = PTR_ERR(endpoint);
+ goto put_node;
}

if (endpoint->bus_type != V4L2_MBUS_CSI2 ||
@@ -2013,6 +2014,8 @@ static int tc358743_probe_of(struct tc358743_state *state)
clk_disable_unprepare(refclk);
free_endpoint:
v4l2_fwnode_endpoint_free(endpoint);
+put_node:
+ of_node_put(ep);
return ret;
}
#else
--
2.7.4