commit 5539b3c938d64a60cb1fc442ac3ce9263d52de0c upstream.
Memory allocated and references taken by of_gpiochip_add and
acpi_gpiochip_add were never released on errors in gpiochip_add (e.g.
failure to find free gpio range).
Fixes: 391c970c0d ("of/gpio: add default of_xlate function if device
has a node pointer")
Fixes: 664e3e5ac6 ("gpio / ACPI: register to ACPI events
automatically")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[lizf: Backported to 3.4:
- move the call to of_gpiochip_add() into the above if condition.
- remove the call to acpi_gpiochip_remove()]
Signed-off-by: Zefan Li <lizefan@huawei.com>