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    Subject[PATCH 5.15 346/530] mfd: sm501: Add check for platform_driver_register()
    Date
    From: Jiasheng Jiang <jiasheng@iscas.ac.cn>

    [ 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>
    ---
    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 bc0a2c38653e..3ac4508a6742 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);
    }

    --
    2.35.1


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