1053  * Returns: label for hat transition OR ERR_PTR.  Does NOT return NULL
1059 	struct aa_profile *root, *hat = NULL;  in build_change_hat()  local
1073 	hat = aa_find_child(root, name);  in build_change_hat()
1074 	if (!hat) {  in build_change_hat()
1077 			hat = aa_new_learning_profile(profile, true, name,  in build_change_hat()
1079 			if (!hat) {  in build_change_hat()
1090 		      name, hat ? hat->base.hname : NULL,  in build_change_hat()
1091 		      hat ? &hat->label : NULL, GLOBAL_ROOT_UID, info,  in build_change_hat()
1093 	if (!hat || (error && error != -ENOENT))  in build_change_hat()
1095 	/* if hat && error - complain mode, already audited and we adjust for  in build_change_hat()
1096 	 * complain mode allow by returning hat->label  in build_change_hat()
1098 	return &hat->label;  in build_change_hat()
1101 /* helper fn for changing into a hat
1103  * Returns: label for hat transition or ERR_PTR. Does not return NULL
1109 	struct aa_profile *profile, *root, *hat = NULL;  in change_hat()  local
1123 	/*find first matching hat */  in change_hat()
1124 	for (i = 0; i < count && !hat; i++) {  in change_hat()
1136 			hat = aa_find_child(root, name);  in change_hat()
1138 			if (!hat) {  in change_hat()
1141 				/* complain mode succeed as if hat */  in change_hat()
1142 			} else if (!PROFILE_IS_HAT(hat)) {  in change_hat()
1143 				info = "target not hat";  in change_hat()
1145 				aa_put_profile(hat);  in change_hat()
1148 			aa_put_profile(hat);  in change_hat()
1150 		/* found a hat for all profiles in ns */  in change_hat()
1158 	 * hat supplied.  This is done due how userspace interacts with  in change_hat()
1164 			info = "hat not found";  in change_hat()
1205  * aa_change_hat - change hat to/from subprofile
1206  * @hats: vector of hat names to try changing into (MAYBE NULL if @count == 0)
1207  * @count: number of hat names in @hats
1208  * @token: magic value to validate the hat change