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sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init()

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[ Upstream commit ac0cdb3d990108df795b676cd0d0e65ac34b2273 ]

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@huawei.com>
Reviewed-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
This commit is contained in:
Mao Wenan 2019-03-08 22:08:31 +08:00 • committed by Greg Kroah-Hartman
parent 2cbb465e52
commit 1d815c5a94
1 changed files with 10 additions and 2 deletions

12
drivers/tty/serial/sc16is7xx.c
View file

@ -1481,7 +1481,7 @@ 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
@ -1489,10 +1489,18 @@ 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);