diff options
Diffstat (limited to 'drivers/dax')
| -rw-r--r-- | drivers/dax/super.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c index 4827251782a1..ce9e563e6e1d 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -316,9 +316,12 @@ EXPORT_SYMBOL_GPL(kill_dax); static struct inode *dax_alloc_inode(struct super_block *sb) { struct dax_device *dax_dev; + struct inode *inode; dax_dev = kmem_cache_alloc(dax_cache, GFP_KERNEL); - return &dax_dev->inode; + inode = &dax_dev->inode; + inode->i_rdev = 0; + return inode; } static struct dax_device *to_dax_dev(struct inode *inode) @@ -333,7 +336,8 @@ static void dax_i_callback(struct rcu_head *head) kfree(dax_dev->host); dax_dev->host = NULL; - ida_simple_remove(&dax_minor_ida, MINOR(inode->i_rdev)); + if (inode->i_rdev) + ida_simple_remove(&dax_minor_ida, MINOR(inode->i_rdev)); kmem_cache_free(dax_cache, dax_dev); } @@ -529,6 +533,7 @@ static void init_once(void *_dax_dev) struct dax_device *dax_dev = _dax_dev; struct inode *inode = &dax_dev->inode; + memset(dax_dev, 0, sizeof(*dax_dev)); inode_init_once(inode); } |