6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ian Forbes <ian.forbes@xxxxxxxxxxxx>
[ Upstream commit 4809a017a2bc42ff239d53ade4b2e70f2fe81348 ]
Handle unlikely ENOMEN condition and other errors in
vmw_stdu_connector_atomic_check.
Signed-off-by: Ian Forbes <ian.forbes@xxxxxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Fixes: 75c3e8a26a35 ("drm/vmwgfx: Trigger a modeset when the screen moves")
Reviewed-by: Zack Rusin <zack.rusin@xxxxxxxxxxxx>
Reviewed-by: Martin Krastev <martin.krastev@xxxxxxxxxxxx>
Signed-off-by: Zack Rusin <zack.rusin@xxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20240809183756.27283-1-ian.forbes@xxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index b22ae25db4e17..52ea0c50c852c 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -881,6 +881,10 @@ static int vmw_stdu_connector_atomic_check(struct drm_connector *conn,
struct drm_crtc_state *new_crtc_state;
conn_state = drm_atomic_get_connector_state(state, conn);
+
+ if (IS_ERR(conn_state))
+ return PTR_ERR(conn_state);
+
du = vmw_connector_to_stdu(conn);
if (!conn_state->crtc)
--
2.43.0
