drm/i915: Fix atomic state leak when resetting HDMI link

Atomic state needs to be put even if the commit was successful.

Fixes: dba14b27dd3c ("drm/i915: Reinitialize sink scrambling/TMDS clock ratio on HPD")
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190302003349.19189-1-jose.souza@intel.com
(cherry picked from commit a551cd66bc0a15ba00433743094c2453e1ee7aa9)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 2323b7c..14d580c 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -3969,12 +3969,7 @@
 		goto out;
 
 	ret = drm_atomic_commit(state);
-	if (ret)
-		goto out;
-
-	return 0;
-
- out:
+out:
 	drm_atomic_state_put(state);
 
 	return ret;