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    Subject[PATCH 5.4 156/475] drm/bridge: Add missing pm_runtime_disable() in __dw_mipi_dsi_probe
    Date
    From: Miaoqian Lin <linmq006@gmail.com>

    [ Upstream commit 96211b7c56b109a52768e6cc5e23a1f79316eca0 ]

    If the probe fails, we should use pm_runtime_disable() to balance
    pm_runtime_enable().
    Add missing pm_runtime_disable() for __dw_mipi_dsi_probe.

    Fixes: 46fc51546d44 ("drm/bridge/synopsys: Add MIPI DSI host controller bridge")
    Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
    Signed-off-by: Robert Foss <robert.foss@linaro.org>
    Link: https://patchwork.freedesktop.org/patch/msgid/20220105104113.31415-1-linmq006@gmail.com
    Reviewed-by: Robert Foss <robert.foss@linaro.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
    index 77384c49fb8d..2fc27931d3b5 100644
    --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
    +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
    @@ -1057,6 +1057,7 @@ __dw_mipi_dsi_probe(struct platform_device *pdev,
    ret = mipi_dsi_host_register(&dsi->dsi_host);
    if (ret) {
    dev_err(dev, "Failed to register MIPI host: %d\n", ret);
    + pm_runtime_disable(dev);
    dw_mipi_dsi_debugfs_remove(dsi);
    return ERR_PTR(ret);
    }
    --
    2.34.1


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