linux-kernel - [PATCH] drm/bridge: Add missing pm_runtime_disable() in __dw_mipi_dsi

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Message-Id: <20220105104113.31415-1-linmq006@gmail.com>
Date:   Wed,  5 Jan 2022 10:41:09 +0000
From:   Miaoqian Lin <linmq006@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linmq006@...il.com, Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Robert Foss <robert.foss@...aro.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Philippe CORNU <philippe.cornu@...com>,
        Archit Taneja <architt@...eaurora.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/bridge: Add missing pm_runtime_disable() in __dw_mipi_dsi_probe

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: 46fc515 ("drm/bridge/synopsys: Add MIPI DSI host controller bridge")
Signed-off-by: Miaoqian Lin <linmq006@...il.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 e44e18a0112a..56c3fd08c6a0 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -1199,6 +1199,7 @@ __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);
 	}
-- 
2.17.1