diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-17 14:24:35 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-17 14:24:35 +0100 |
| commit | 753e23ea588d353da9d0a2672828336453607265 (patch) | |
| tree | a0eb4875ecde41725fe890e27f52d69812031ea1 /drivers/block/loop.c | |
| parent | c999836d37c6c1125e856f68877ae13952baa61a (diff) | |
| parent | 41ef2d5678d83af030125550329b6ae8b74618fa (diff) | |
Merge tag 'v3.9-rc7' into asoc-dma
Linux 3.9-rc7
Diffstat (limited to 'drivers/block/loop.c')
| -rw-r--r-- | drivers/block/loop.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 747bb2af69dc..dfe758382eaf 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -922,6 +922,11 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode, lo->lo_flags |= LO_FLAGS_PARTSCAN; if (lo->lo_flags & LO_FLAGS_PARTSCAN) ioctl_by_bdev(bdev, BLKRRPART, 0); + + /* Grab the block_device to prevent its destruction after we + * put /dev/loopXX inode. Later in loop_clr_fd() we bdput(bdev). + */ + bdgrab(bdev); return 0; out_clr: @@ -1031,8 +1036,10 @@ static int loop_clr_fd(struct loop_device *lo) memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE); memset(lo->lo_crypt_name, 0, LO_NAME_SIZE); memset(lo->lo_file_name, 0, LO_NAME_SIZE); - if (bdev) + if (bdev) { + bdput(bdev); invalidate_bdev(bdev); + } set_capacity(lo->lo_disk, 0); loop_sysfs_exit(lo); if (bdev) { @@ -1623,6 +1630,7 @@ static int loop_add(struct loop_device **l, int i) goto out_free_dev; i = err; + err = -ENOMEM; lo->lo_queue = blk_alloc_queue(GFP_KERNEL); if (!lo->lo_queue) goto out_free_dev; |