[PATCH 2/4] drm/vc4: hdmi: Put the device on error in pre_crtc_configure

[Maxime Ripard <maxime@cerno.tech>]

In the vc4_hdmi_encoder_pre_crtc_configure() function error path we
never actually call pm_runtime_put() even though
pm_runtime_resume_and_get() is our very first call.

Fixes: 4f6e3d66ac52 ("drm/vc4: Add runtime PM support to the HDMI encoder driver")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 707fe43ffeea..b3db38d37550 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -958,6 +958,7 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
 	if (ret) {
 		DRM_ERROR("Failed to set pixel bvb clock rate: %d\n", ret);
 		clk_disable_unprepare(vc4_hdmi->pixel_clock);
+		pm_runtime_put(&vc4_hdmi->pdev->dev);
 		return;
 	}
 
@@ -965,6 +966,7 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
 	if (ret) {
 		DRM_ERROR("Failed to turn on pixel bvb clock: %d\n", ret);
 		clk_disable_unprepare(vc4_hdmi->pixel_clock);
+		pm_runtime_put(&vc4_hdmi->pdev->dev);
 		return;
 	}
 
-- 
2.31.1