From: Jiasheng Jiang <jiasheng@iscas.ac.cn> stable inclusion from stable-v5.10.150 commit 6e58f2469ec5c3a4325bbeec0b0bd3e37d21e138 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0XA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 8325a6c24ad78b8c1acc3c42b098ee24105d68e5 ] As platform_driver_register() can return error numbers, it should be better to check platform_driver_register() and deal with the exception. Fixes: b6d6454fdb66 ("[PATCH] mfd: SM501 core driver") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220913091112.1739138-1-jiasheng@iscas.ac.cn Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> --- drivers/mfd/sm501.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index 6d2f4a0a901d..37ad72d8cde2 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -1720,7 +1720,12 @@ static struct platform_driver sm501_plat_driver = { static int __init sm501_base_init(void) { - platform_driver_register(&sm501_plat_driver); + int ret; + + ret = platform_driver_register(&sm501_plat_driver); + if (ret < 0) + return ret; + return pci_register_driver(&sm501_pci_driver); } -- 2.25.1