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    Subject[PATCH AUTOSEL 5.4 024/130] drm: panel: simple: add missing platform_driver_unregister() in panel_simple_init
    Date
    From: Qinglang Miao <miaoqinglang@huawei.com>

    [ Upstream commit f2e66f212a9de04afc2caa5ec79057c0ac75c728 ]

    Add the missing platform_driver_unregister() before return
    from panel_simple_init in the error handling case when failed
    to register panel_simple_dsi_driver with CONFIG_DRM_MIPI_DSI
    enabled.

    Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
    Link: https://patchwork.freedesktop.org/patch/msgid/20201031011856.137307-1-miaoqinglang@huawei.com
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/gpu/drm/panel/panel-simple.c | 4 +++-
    1 file changed, 3 insertions(+), 1 deletion(-)

    diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
    index f0ea782df836d..579d53e9a769c 100644
    --- a/drivers/gpu/drm/panel/panel-simple.c
    +++ b/drivers/gpu/drm/panel/panel-simple.c
    @@ -3777,8 +3777,10 @@ static int __init panel_simple_init(void)

    if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) {
    err = mipi_dsi_driver_register(&panel_simple_dsi_driver);
    - if (err < 0)
    + if (err < 0) {
    + platform_driver_unregister(&panel_simple_platform_driver);
    return err;
    + }
    }

    return 0;
    --
    2.27.0
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