[PATCH] sysfs: fix sysfs_dir_close memory leak

sysfs_dir_close did not free the "cursor" sysfs_dirent used for keeping
track of position in the list of sysfs_dirent nodes.  Consequently,
doing a "find /sys" would leak a sysfs_dirent for each of the 1140
directories in my /sys tree, or about 36kB each time.


From: "Adam J. Richter" <adam@yggdrasil.com>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/sysfs/dir.c

@@ -351,6 +351,8 @@ static int sysfs_dir_close(struct inode *inode, struct file *file)
 	list_del_init(&cursor->s_sibling);
 	up(&dentry->d_inode->i_sem);
 
+	release_sysfs_dirent(cursor);
+
 	return 0;
 }