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drm/i915/sdvo: ignore returned broken edid on intel_sdvo_tmds_sink_detect

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If drm_edid_raw returned NULL on error don't try accessing anything behind
that NULL

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230803143530.27601-1-juhapekka.heikkila@gmail.com
This commit is contained in:
Juha-Pekka Heikkila 2023-08-03 17:35:30 +03:00 committed by Jouni Högander
parent d823445b09
commit 90c0756a5e
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/i915/display/intel_sdvo.c
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@ -2097,7 +2097,7 @@ intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
const struct edid *edid = drm_edid_raw(drm_edid);
/* DDC bus is shared, match EDID to connector type */
if (edid->input & DRM_EDID_INPUT_DIGITAL)
if (edid && edid->input & DRM_EDID_INPUT_DIGITAL)
status = connector_status_connected;
else
status = connector_status_disconnected;