From: Miaoqian Lin linmq006@gmail.com
stable inclusion from stable-v5.10.110 commit 064e7f75325c2425de0eeba2aebed326b700612d bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ 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-linmq00... Reviewed-by: Robert Foss robert.foss@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yu Liao liaoyu15@huawei.com Reviewed-by: Wei Li liwei391@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- 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 6b268f9445b3..376fa6eb46f6 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c @@ -1172,6 +1172,7 @@ __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); }