From: Thierry Reding <treding@nvidia.com>
Date: Thu, 9 Sep 2021 12:10:23 +0000 (+0200)
Subject: drm/tegra: Propagate errors from drm_gem_plane_helper_prepare_fb()
X-Git-Tag: v5.17-rc1~173^2~7^2~30
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee423808990d6fa6b367561a2390ad99b1551d6b;p=thirdparty%2Flinux.git

drm/tegra: Propagate errors from drm_gem_plane_helper_prepare_fb()

Currently this function doesn't return an error, but that may change in
the future, so make sure to propagate any error codes that it might
return.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/drivers/gpu/drm/tegra/plane.c b/drivers/gpu/drm/tegra/plane.c
index f8e8afcbcbf2d..321cb1f13da63 100644
--- a/drivers/gpu/drm/tegra/plane.c
+++ b/drivers/gpu/drm/tegra/plane.c
@@ -200,11 +200,14 @@ int tegra_plane_prepare_fb(struct drm_plane *plane,
 			   struct drm_plane_state *state)
 {
 	struct tegra_dc *dc = to_tegra_dc(state->crtc);
+	int err;
 
 	if (!state->fb)
 		return 0;
 
-	drm_gem_plane_helper_prepare_fb(plane, state);
+	err = drm_gem_plane_helper_prepare_fb(plane, state);
+	if (err < 0)
+		return err;
 
 	return tegra_dc_pin(dc, to_tegra_plane_state(state));
 }