[PATCH] drm/atomic-helper: fix parameter order in drm_format_conv_state_copy() call

[Lucas Stach]

Old and new state parameters are swapped, so the old state was cleared
instead of the new duplicated state.

Fixes: 903674588a48 ("drm/atomic-helper: Add format-conversion state to shadow-plane state")
Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
Tested-by: Leonard Göhrs <l.goehrs at pengutronix.de>
---
 drivers/gpu/drm/drm_gem_atomic_helper.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_gem_atomic_helper.c b/drivers/gpu/drm/drm_gem_atomic_helper.c
index e440f458b663..93337543aac3 100644
--- a/drivers/gpu/drm/drm_gem_atomic_helper.c
+++ b/drivers/gpu/drm/drm_gem_atomic_helper.c
@@ -224,8 +224,8 @@ __drm_gem_duplicate_shadow_plane_state(struct drm_plane *plane,
 
 	__drm_atomic_helper_plane_duplicate_state(plane, &new_shadow_plane_state->base);
 
-	drm_format_conv_state_copy(&shadow_plane_state->fmtcnv_state,
-				   &new_shadow_plane_state->fmtcnv_state);
+	drm_format_conv_state_copy(&new_shadow_plane_state->fmtcnv_state,
+				   &shadow_plane_state->fmtcnv_state);
 }
 EXPORT_SYMBOL(__drm_gem_duplicate_shadow_plane_state);
 
-- 
2.39.2