3.16.55-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Lixin Wang <[email protected]> commit e0638fa400eaccf9fa8060f67140264c4e276552 upstream. Reference count of device node was increased in of_i2c_register_device, but without decreasing it in i2c_unregister_device. Then the added device node will never be released. Fix this by adding the of_node_put. Signed-off-by: Lixin Wang <[email protected]> Tested-by: Wolfram Sang <[email protected]> Signed-off-by: Wolfram Sang <[email protected]> [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings <[email protected]> --- drivers/i2c/i2c-core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -740,6 +740,10 @@ EXPORT_SYMBOL_GPL(i2c_new_device); */ void i2c_unregister_device(struct i2c_client *client) { + if (client->dev.of_node) { + of_node_put(client->dev.of_node); + } + device_unregister(&client->dev); } EXPORT_SYMBOL_GPL(i2c_unregister_device);
