Commit be925587 authored by Chris Wilson's avatar Chris Wilson Committed by Keith Packard

drm/i915: Propagate failure to set mode for load-detect pipe

Check the return value from drm_crtc_set_mode(), report the failure
via a debug message and propagate the error back to the caller. This
prevents us from blissfully continuing to do the load detection on a
disabled pipe. Fortunately actual failure for modesetting is very rare,
and reported failures even rarer.
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarKeith Packard <keithp@keithp.com>
parent 7173188d
......@@ -5551,7 +5551,11 @@ bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
if (!crtc->enabled) {
if (!mode)
mode = &load_detect_mode;
drm_crtc_helper_set_mode(crtc, mode, 0, 0, crtc->fb);
if (!drm_crtc_helper_set_mode(crtc, mode, 0, 0, crtc->fb)) {
DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
return false;
}
} else {
if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) {
crtc_funcs = crtc->helper_private;
......
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