drm/edid: Refactor HFVSDB parsing for DSC1.2

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DSC capabilities are given in bytes 11-13 of VSDB (i.e. bytes 8-10 of
SCDS). Since minimum length of Data block is 7, all bytes greater than 7
must be read only after checking the length of the data block.

This patch adds check for data block length before reading relavant DSC
bytes.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220916100551.2531750-4-ankit.k.nautiyal@intel.com

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Ankit Nautiyal 2022-09-16 15:35:50 +05:30 • committed by Jani Nikula

parent 5e706c4db9

commit a07e6f56b3

1 changed files with 49 additions and 44 deletions

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drivers/gpu/drm/drm_edid.c

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