diff options
Diffstat (limited to 'fs/debugfs/inode.c')
| -rw-r--r-- | fs/debugfs/inode.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index c59f015f386e..a9c3d3e9af39 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -185,6 +185,11 @@ static const struct super_operations debugfs_super_operations = { .evict_inode = debugfs_evict_inode, }; +static void debugfs_release_dentry(struct dentry *dentry) +{ + kfree(dentry->d_fsdata); +} + static struct vfsmount *debugfs_automount(struct path *path) { debugfs_automount_t f; @@ -194,6 +199,7 @@ static struct vfsmount *debugfs_automount(struct path *path) static const struct dentry_operations debugfs_dops = { .d_delete = always_delete_dentry, + .d_release = debugfs_release_dentry, .d_automount = debugfs_automount, }; @@ -341,24 +347,34 @@ static struct dentry *__debugfs_create_file(const char *name, umode_t mode, { struct dentry *dentry; struct inode *inode; + struct debugfs_fsdata *fsd; + + fsd = kmalloc(sizeof(*fsd), GFP_KERNEL); + if (!fsd) + return NULL; if (!(mode & S_IFMT)) mode |= S_IFREG; BUG_ON(!S_ISREG(mode)); dentry = start_creating(name, parent); - if (IS_ERR(dentry)) + if (IS_ERR(dentry)) { + kfree(fsd); return NULL; + } inode = debugfs_get_inode(dentry->d_sb); - if (unlikely(!inode)) + if (unlikely(!inode)) { + kfree(fsd); return failed_creating(dentry); + } inode->i_mode = mode; inode->i_private = data; inode->i_fop = proxy_fops; - dentry->d_fsdata = (void *)real_fops; + fsd->real_fops = real_fops; + dentry->d_fsdata = fsd; d_instantiate(dentry, inode); fsnotify_create(d_inode(dentry->d_parent), dentry); |