diff options
| -rw-r--r-- | fs/sysfs/dir.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index a0da2b05a754..54ca4bc02dcf 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -130,8 +130,10 @@ struct dentry *sysfs_get_dentry(struct sysfs_dirent *sd) /* look it up */ parent_dentry = dentry; + mutex_lock(&parent_dentry->d_inode->i_mutex); dentry = lookup_one_len_kern(cur->s_name, parent_dentry, strlen(cur->s_name)); + mutex_unlock(&parent_dentry->d_inode->i_mutex); dput(parent_dentry); if (IS_ERR(dentry)) { |