diff options
| author |   Lixin Wang <alan.1.wang@nokia-sbell.com> | 2017-11-27 15:06:55 +0800 |
|---|---|---|
| committer |   Wolfram Sang <wsa@the-dreams.de> | 2018-01-17 15:23:31 +0100 |
| commit | e0638fa400eaccf9fa8060f67140264c4e276552 (patch) | |
| tree | d0132eff16106aa5a9b961e85261b0e9e22329b8 /drivers/i2c | |
| parent | Linux 4.15-rc8 (diff) | |
| download | linux-dev-e0638fa400eaccf9fa8060f67140264c4e276552.tar.xz linux-dev-e0638fa400eaccf9fa8060f67140264c4e276552.zip | |
i2c: core: decrease reference count of device node in i2c_unregister_device
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 <alan.1.wang@nokia-sbell.com>
Tested-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/i2c-core-base.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 706164b4c5be..f7829a74140c 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -821,8 +821,12 @@ void i2c_unregister_device(struct i2c_client *client) { if (!client) return; - if (client->dev.of_node) + + if (client->dev.of_node) { of_node_clear_flag(client->dev.of_node, OF_POPULATED); + of_node_put(client->dev.of_node); + } + if (ACPI_COMPANION(&client->dev)) acpi_device_clear_enumerated(ACPI_COMPANION(&client->dev)); device_unregister(&client->dev); |