ubi_leb_unmap    2261 fs/ubifs/debug.c 	err = ubi_leb_unmap(desc, lnum);
ubi_leb_unmap     137 fs/ubifs/misc.h 	err = ubi_leb_unmap(c->ubi, lnum);
ubi_leb_unmap     152 include/linux/mtd/ubi.h int ubi_leb_unmap(struct ubi_volume_desc *desc, int lnum);