linux-kernel - [PATCH v3 3/4] drm/rockchip: dsi: Fix unbalanced clock on probe error

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Message-Id: <20210928143413.v3.3.Ie8ceefb51ab6065a1151869b6fcda41a467d4d2c@changeid>
Date:   Tue, 28 Sep 2021 14:35:51 -0700
From:   Brian Norris <briannorris@...omium.org>
To:     Heiko Stübner <heiko@...ech.de>
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-rockchip@...ts.infradead.org,
        Sandy Huang <hjc@...k-chips.com>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Thomas Hebb <tommyhebb@...il.com>,
        Brian Norris <briannorris@...omium.org>
Subject: [PATCH v3 3/4] drm/rockchip: dsi: Fix unbalanced clock on probe error

Our probe() function never enabled this clock, so we shouldn't disable
it if we fail to probe the bridge.

Noted by inspection.

Fixes: 2d4f7bdafd70 ("drm/rockchip: dsi: migrate to use dw-mipi-dsi bridge driver")
Signed-off-by: Brian Norris <briannorris@...omium.org>
Reviewed-by: Chen-Yu Tsai <wenst@...omium.org>
---

(no changes since v1)

 drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 21c67343cc6c..8ea852880d1c 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -1434,14 +1434,10 @@ static int dw_mipi_dsi_rockchip_probe(struct platform_device *pdev)
 		if (ret != -EPROBE_DEFER)
 			DRM_DEV_ERROR(dev,
 				      "Failed to probe dw_mipi_dsi: %d\n", ret);
-		goto err_clkdisable;
+		return ret;
 	}
 
 	return 0;
-
-err_clkdisable:
-	clk_disable_unprepare(dsi->pllref_clk);
-	return ret;
 }
 
 static int dw_mipi_dsi_rockchip_remove(struct platform_device *pdev)
-- 
2.33.0.685.g46640cef36-goog