Commit d60d2bcc authored by Jani Nikula's avatar Jani Nikula
Browse files

drm/edid: make drm_edid_duplicate() safe to call with NULL parameter 



It's a bit tedious to check for NULL before calling
drm_edid_duplicate(). Make it handle NULL parameter graciously.

Reviewed-by: default avatarAnkit Nautiyal <ankit.k.nautiyal@intel.com>
Acked-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1ae8923d39a5abd0260fdf7f9cc54c5e046e70d3.1685437501.git.jani.nikula@intel.com
parent a036aa1f

drivers/gpu/drm/drm_edid.c

+3 −0
Original line number Diff line number Diff line
@@ -2881,6 +2881,9 @@ EXPORT_SYMBOL(drm_edid_read_switcheroo); 
 */

struct edid *drm_edid_duplicate(const struct edid *edid)

{

	if (!edid)

		return NULL;



	return kmemdup(edid, edid_size(edid), GFP_KERNEL);

}

EXPORT_SYMBOL(drm_edid_duplicate);