From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 6 May 2013 00:20:25 +0000 (-0400)
Subject: hfs: SMP race on directory close()
X-Git-Tag: submit/tizen_common/20140905.094502~2954^2~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1950267e6e9dc2531f2790bf217aa7aadc9aa324;p=sdk%2Femulator%2Femulator-kernel.git

hfs: SMP race on directory close()

->open_dir_list needs protection...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index 17c22a8fd40a..e0101b6fb0d7 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -176,7 +176,9 @@ static int hfs_dir_release(struct inode *inode, struct file *file)
 {
 	struct hfs_readdir_data *rd = file->private_data;
 	if (rd) {
+		mutex_lock(&inode->i_mutex);
 		list_del(&rd->list);
+		mutex_unlock(&inode->i_mutex);
 		kfree(rd);
 	}
 	return 0;