diff options
author | Mao Wenan <maowenan@huawei.com> | 2019-03-08 22:08:31 +0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-04 09:15:18 +0200 |
commit | 707615f47db3e240158abe732ef4f99e01c2a91f (patch) | |
tree | fda35739b8591eb63bb088d2cf8c997ebeb9f2da /drivers/tty/serial/sc16is7xx.c | |
parent | ae35822a3ee0f9e2e86a8e878084eca7c08fa1e2 (diff) |
sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init()
[ 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>
Diffstat (limited to 'drivers/tty/serial/sc16is7xx.c')
-rw-r--r-- | drivers/tty/serial/sc16is7xx.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index a79f18edf2bd..e48523da47ac 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1483,7 +1483,7 @@ 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 @@ -1491,10 +1491,18 @@ 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); |