sorry for duplicate mail, please ignore this one.
On 2019/3/8 22:09, Mao Wenan wrote:
> Add the missing uart_unregister_driver() and i2c_del_driver() before return
> from sc16is7xx_init() in the error handling case.
>
> Signed-off-by: Mao Wenan <maowenan@xxxxxxxxxx>
> ---
> drivers/tty/serial/sc16is7xx.c | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
> index 268098681856..114e94f476c6 100644
> --- a/drivers/tty/serial/sc16is7xx.c
> +++ b/drivers/tty/serial/sc16is7xx.c
> @@ -1509,7 +1509,7 @@ static int __init sc16is7xx_init(void)
> ret = i2c_add_driver(&sc16is7xx_i2c_uart_driver);
> if (ret < 0) {
> pr_err("failed to init sc16is7xx i2c --> %d\n", ret);
> - return ret;
> + goto err_i2c;
> }
> #endif
>
> @@ -1517,10 +1517,18 @@ static int __init sc16is7xx_init(void)
> ret = spi_register_driver(&sc16is7xx_spi_uart_driver);
> if (ret < 0) {
> pr_err("failed to init sc16is7xx spi --> %d\n", ret);
> - return ret;
> + goto err_spi;
> }
> #endif
> return ret;
> +
> +err_spi:
> +#ifdef CONFIG_SERIAL_SC16IS7XX_I2C
> + i2c_del_driver(&sc16is7xx_i2c_uart_driver);
> +#endif
> +err_i2c:
> + uart_unregister_driver(&sc16is7xx_uart);
> + return ret;
> }
> module_init(sc16is7xx_init);
>
>
