[FROM-ML] drm/amd/display: Return if DisplayID not found in parse_amd…

…_vsdb()

[Why]
The function would continue to try to parse EDID even if DisplayID
extension block wasn't found. Sometimes it got lucky and found AMD vsdb
in CEA extension block which made debugging harder.

[How]
Add a return if DisplayID extension block wasn't found

Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -13126,6 +13126,9 @@ static int parse_amd_vsdb(struct amdgpu_dm_connector *aconnector,
 			break;
 	}
 
+	if (i == edid->extensions)
+		return false;
+
 	while (j < EDID_LENGTH - sizeof(struct amd_vsdb_block)) {
 		struct amd_vsdb_block *amd_vsdb = (struct amd_vsdb_block *)&edid_ext[j];
 		unsigned int ieeeId = (amd_vsdb->ieee_id[2] << 16) | (amd_vsdb->ieee_id[1] << 8) | (amd_vsdb->ieee_id[0]);