mtd: docg3: Don't leak docg3->bbt in error path

Signed-off-by: Richard Weinberger <[e-mail]>
Signed-off-by: Brian Norris <[e-mail]>

drivers/mtd/devices/docg3.c

···
 
 	ret = 0;
 	if (chip_id != (u16)(~chip_id_inv)) {
-		goto nomem3;
+		goto nomem4;
 	}
 
 	switch (chip_id) {
···
 		break;
 	default:
 		doc_err("Chip id %04x is not a DiskOnChip G3 chip\n", chip_id);
-		goto nomem3;
+		goto nomem4;
 	}
 
 	doc_set_driver_info(chip_id, mtd);
···
 	doc_reload_bbt(docg3);
 	return mtd;
 
+nomem4:
+	kfree(docg3->bbt);
 nomem3:
 	kfree(mtd);
 nomem2: