loop: Properly clear sysfs in autoclear mode
authorMilan Broz <mbroz@redhat.com>
Thu, 28 Oct 2010 01:51:30 +0000 (19:51 -0600)
committerJens Axboe <jaxboe@fusionio.com>
Thu, 28 Oct 2010 01:51:30 +0000 (19:51 -0600)
commit51a0bb0c2e614659132fce272c8a1815a12c5c2a
tree93554b329e8e6cd9378641422dea4245c05a98dd
parent12ba8d1e9262ce81a695795410bd9ee5c9407ba1
loop: Properly clear sysfs in autoclear mode

In autoclear mode bdev is NULL but the sysfs
entry should be destroyed otherwise this warning appears:

WARNING: at fs/sysfs/dir.c:451 sysfs_add_one+0x82/0x95()
sysfs: cannot create duplicate filename '/devices/virtual/block/loop0/loop'

Fixes commit ee86273062cbb310665fe49e1f1937d2cf85b0b9

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
drivers/block/loop.c