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drm/rockchip: cdn-dp: Fix error handling

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It is likely that both 'clk_disable_unprepare()' should be called if
'pm_runtime_get_sync()' fails.

Add a new label for that, because 'err_set_rate' is not meaningful in this
case.

Add a missing call to 'pm_runtime_put()'.

Fixes: 1a0f7ed3ab ("drm/rockchip: cdn-dp: add cdn DP support for rk3399")

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170220070815.23096-1-christophe.jaillet@wanadoo.fr
This commit is contained in:
Christophe JAILLET 2017-02-20 08:08:15 +01:00 committed by Sean Paul
parent b6705157b2
commit efe0220fc2
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/rockchip/cdn-dp-core.c
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@ -111,7 +111,7 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
ret = pm_runtime_get_sync(dp->dev);
if (ret < 0) {
DRM_DEV_ERROR(dp->dev, "cannot get pm runtime %d\n", ret);
goto err_pclk;
goto err_pm_runtime_get;
}
reset_control_assert(dp->core_rst);
@ -133,6 +133,8 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
return 0;
err_set_rate:
pm_runtime_put(dp->dev);
err_pm_runtime_get:
clk_disable_unprepare(dp->core_clk);
err_core_clk:
clk_disable_unprepare(dp->pclk);