If devt is MKDEV(0, 0), its MAJOR cannot be BLOCK_EXT_MAJOR, so, I think we can remove the statement.
Signed-off-by: Yufen Yu <[email protected]> --- block/genhd.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index f00198e6758a..961b2bc4634f 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -522,9 +522,6 @@ int blk_alloc_devt(struct hd_struct *part, dev_t *devt) */ void blk_free_devt(dev_t devt) { - if (devt == MKDEV(0, 0)) - return; - if (MAJOR(devt) == BLOCK_EXT_MAJOR) { spin_lock_bh(&ext_devt_lock); idr_remove(&ext_devt_idr, blk_mangle_minor(MINOR(devt))); -- 2.16.2.dirty
