From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Levin Subject: [PATCH AUTOSEL 4.19 16/68] sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init() Date: Mon, 22 Apr 2019 15:44:24 -0400 Message-ID: <20190422194516.11634-16-sashal@kernel.org> References: <20190422194516.11634-1-sashal@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190422194516.11634-1-sashal@kernel.org> Sender: stable-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Mao Wenan , Greg Kroah-Hartman , Sasha Levin , linux-serial@vger.kernel.org List-Id: linux-serial@vger.kernel.org From: Mao Wenan [ 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 Reviewed-by: Vladimir Zapolskiy Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin (Microsoft) --- 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 47b41159a8bc..55b178c1bd65 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -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); -- 2.19.1