diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2013-04-24 20:33:46 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-04-24 20:33:54 +0200 |
| commit | 6402c7dc2a19c19bd8cdc7d80878b850da418942 (patch) | |
| tree | cda2ea2df40442e2aa016119f3548cc504127ea8 /drivers/block/loop.c | |
| parent | 77c675ba18836802f6b73d2d773481d06ebc0f04 (diff) | |
| parent | 60d509fa6a9c4653a86ad830e4c4b30360b23f0e (diff) | |
Merge branch 'linus' into timers/core
Reason: Get upstream fixes before adding conflicting code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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 747bb2af69d..dfe758382ea 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; |