440 		struct ubi_leb_change_req req;  in vol_cdev_ioctl()  local
442 		err = copy_from_user(&req, argp,  in vol_cdev_ioctl()
457 		if (req.lnum < 0 || req.lnum >= vol->reserved_pebs ||  in vol_cdev_ioctl()
458 		    req.bytes < 0 || req.bytes > vol->usable_leb_size)  in vol_cdev_ioctl()
465 		err = ubi_start_leb_change(ubi, vol, &req);  in vol_cdev_ioctl()
466 		if (req.bytes == 0)  in vol_cdev_ioctl()
505 		struct ubi_map_req req;  in vol_cdev_ioctl()  local
507 		err = copy_from_user(&req, argp, sizeof(struct ubi_map_req));  in vol_cdev_ioctl()
512 		err = ubi_leb_map(desc, req.lnum);  in vol_cdev_ioctl()
547 		struct ubi_set_vol_prop_req req;  in vol_cdev_ioctl()  local
549 		err = copy_from_user(&req, argp,  in vol_cdev_ioctl()
555 		switch (req.property) {  in vol_cdev_ioctl()
558 			desc->vol->direct_writes = !!req.value;  in vol_cdev_ioctl()
603 			    const struct ubi_mkvol_req *req)  in verify_mkvol_req()  argument
607 	if (req->bytes < 0 || req->alignment < 0 || req->vol_type < 0 ||  in verify_mkvol_req()
608 	    req->name_len < 0)  in verify_mkvol_req()
611 	if ((req->vol_id < 0 || req->vol_id >= ubi->vtbl_slots) &&  in verify_mkvol_req()
612 	    req->vol_id != UBI_VOL_NUM_AUTO)  in verify_mkvol_req()
615 	if (req->alignment == 0)  in verify_mkvol_req()
618 	if (req->bytes == 0)  in verify_mkvol_req()
621 	if (req->vol_type != UBI_DYNAMIC_VOLUME &&  in verify_mkvol_req()
622 	    req->vol_type != UBI_STATIC_VOLUME)  in verify_mkvol_req()
625 	if (req->alignment > ubi->leb_size)  in verify_mkvol_req()
628 	n = req->alignment & (ubi->min_io_size - 1);  in verify_mkvol_req()
629 	if (req->alignment != 1 && n)  in verify_mkvol_req()
632 	if (!req->name[0] || !req->name_len)  in verify_mkvol_req()
635 	if (req->name_len > UBI_VOL_NAME_MAX) {  in verify_mkvol_req()
640 	n = strnlen(req->name, req->name_len + 1);  in verify_mkvol_req()
641 	if (n != req->name_len)  in verify_mkvol_req()
648 	ubi_dump_mkvol_req(req);  in verify_mkvol_req()
660 			    const struct ubi_rsvol_req *req)  in verify_rsvol_req()  argument
662 	if (req->bytes <= 0)  in verify_rsvol_req()
665 	if (req->vol_id < 0 || req->vol_id >= ubi->vtbl_slots)  in verify_rsvol_req()
682 			  struct ubi_rnvol_req *req)  in rename_volumes()  argument
688 	if (req->count < 0 || req->count > UBI_MAX_RNVOL)  in rename_volumes()
691 	if (req->count == 0)  in rename_volumes()
695 	for (i = 0; i < req->count; i++) {  in rename_volumes()
696 		if (req->ents[i].vol_id < 0 ||  in rename_volumes()
697 		    req->ents[i].vol_id >= ubi->vtbl_slots)  in rename_volumes()
699 		if (req->ents[i].name_len < 0)  in rename_volumes()
701 		if (req->ents[i].name_len > UBI_VOL_NAME_MAX)  in rename_volumes()
703 		req->ents[i].name[req->ents[i].name_len] = '\0';  in rename_volumes()
704 		n = strlen(req->ents[i].name);  in rename_volumes()
705 		if (n != req->ents[i].name_len)  in rename_volumes()
710 	for (i = 0; i < req->count - 1; i++) {  in rename_volumes()
711 		for (n = i + 1; n < req->count; n++) {  in rename_volumes()
712 			if (req->ents[i].vol_id == req->ents[n].vol_id) {  in rename_volumes()
714 					req->ents[i].vol_id);  in rename_volumes()
717 			if (!strcmp(req->ents[i].name, req->ents[n].name)) {  in rename_volumes()
719 					req->ents[i].name);  in rename_volumes()
727 	for (i = 0; i < req->count; i++) {  in rename_volumes()
728 		int vol_id = req->ents[i].vol_id;  in rename_volumes()
729 		int name_len = req->ents[i].name_len;  in rename_volumes()
730 		const char *name = req->ents[i].name;  in rename_volumes()
852 		struct ubi_mkvol_req req;  in ubi_cdev_ioctl()  local
855 		err = copy_from_user(&req, argp, sizeof(struct ubi_mkvol_req));  in ubi_cdev_ioctl()
861 		err = verify_mkvol_req(ubi, &req);  in ubi_cdev_ioctl()
866 		err = ubi_create_volume(ubi, &req);  in ubi_cdev_ioctl()
871 		err = put_user(req.vol_id, (__user int32_t *)argp);  in ubi_cdev_ioctl()
913 		struct ubi_rsvol_req req;  in ubi_cdev_ioctl()  local
916 		err = copy_from_user(&req, argp, sizeof(struct ubi_rsvol_req));  in ubi_cdev_ioctl()
922 		err = verify_rsvol_req(ubi, &req);  in ubi_cdev_ioctl()
926 		desc = ubi_open_volume(ubi->ubi_num, req.vol_id, UBI_EXCLUSIVE);  in ubi_cdev_ioctl()
932 		pebs = div_u64(req.bytes + desc->vol->usable_leb_size - 1,  in ubi_cdev_ioctl()
945 		struct ubi_rnvol_req *req;  in ubi_cdev_ioctl()  local
948 		req = kmalloc(sizeof(struct ubi_rnvol_req), GFP_KERNEL);  in ubi_cdev_ioctl()
949 		if (!req) {  in ubi_cdev_ioctl()
954 		err = copy_from_user(req, argp, sizeof(struct ubi_rnvol_req));  in ubi_cdev_ioctl()
957 			kfree(req);  in ubi_cdev_ioctl()
961 		err = rename_volumes(ubi, req);  in ubi_cdev_ioctl()
962 		kfree(req);  in ubi_cdev_ioctl()
988 		struct ubi_attach_req req;  in ctrl_cdev_ioctl()  local
992 		err = copy_from_user(&req, argp, sizeof(struct ubi_attach_req));  in ctrl_cdev_ioctl()
998 		if (req.mtd_num < 0 ||  in ctrl_cdev_ioctl()
999 		    (req.ubi_num < 0 && req.ubi_num != UBI_DEV_NUM_AUTO)) {  in ctrl_cdev_ioctl()
1004 		mtd = get_mtd_device(NULL, req.mtd_num);  in ctrl_cdev_ioctl()
1015 		err = ubi_attach_mtd_dev(mtd, req.ubi_num, req.vid_hdr_offset,  in ctrl_cdev_ioctl()
1016 					 req.max_beb_per1024);  in ctrl_cdev_ioctl()