[PATCH v7 1/3] i2c: mux: Fix channel node leak on adapter add failure

[Ahmad Byagowi]

i2c_mux_add_adapter() takes a reference to the Device Tree channel node
before registering the new adapter. If adapter registration fails, the
error path frees the private data without dropping that reference.

Release the channel node before freeing the private data.

Fixes: bc45449b1444 ("i2c/of: Automatically populate i2c mux busses from device tree data.")
Signed-off-by: Ahmad Byagowi <ahmadexp@xxxxxxxxx>
---
 drivers/i2c/i2c-mux.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 681a201c239b..68a4c34b5987 100644
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -408,6 +408,7 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc,
 	return 0;
 
 err_free_priv:
+	of_node_put(priv->adap.dev.of_node);
 	kfree(priv);
 	return ret;
 }
-- 
2.50.1 (Apple Git-155)