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drm/vmwgfx: Handle possible ENOMEM in vmw_stdu_connector_atomic_check

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[ Upstream commit 4809a017a2bc42ff239d53ade4b2e70f2fe81348 ]

Handle unlikely ENOMEN condition and other errors in
vmw_stdu_connector_atomic_check.

Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: 75c3e8a26a35 ("drm/vmwgfx: Trigger a modeset when the screen moves")
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Reviewed-by: Martin Krastev <martin.krastev@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240809183756.27283-1-ian.forbes@broadcom.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ian Forbes
2024-08-09 13:37:56 -05:00
committed by Greg Kroah-Hartman
parent 3e220b6f53
commit 81b23c8bb5
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
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@@ -1028,6 +1028,10 @@ 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)