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drm/edid: reduce magic when updating the EDID block checksum

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The code modifying the EDID block should not need to do tricks to fix
the checksum. We have a function for computing the checksum, use it.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5a11435419d804a58ef356c0b9acf445cffc1354.1648752228.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2022-03-31 21:45:09 +03:00
parent ccc97def44
commit ab0609a5fb
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/drm_edid.c
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@ -1842,8 +1842,8 @@ static struct edid *edid_filter_invalid_blocks(const struct edid *edid,
memcpy(dest_block++, block, EDID_LENGTH); memcpy(dest_block++, block, EDID_LENGTH);
} }
new->checksum += new->extensions - valid_extensions;
new->extensions = valid_extensions; new->extensions = valid_extensions;
new->checksum = edid_block_compute_checksum(new);
out: out:
kfree(edid); kfree(edid);