From: Chao Yu <chao2.yu@samsung.com>
Date: Thu, 19 Nov 2015 08:09:07 +0000 (+0800)
Subject: f2fs: fix to report error in f2fs_readdir
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=57b62d29ad5b384775974973087d47755a8c6fcc;p=openwrt%2Fstaging%2Fblogic.git

f2fs: fix to report error in f2fs_readdir

get_lock_data_page in f2fs_readdir can fail due to a lot of reasons (i.e.
no memory or IO error...), it's better to report this kind of error to
user rather than ignoring it.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 7c1678ba8f92..9de898d2ddff 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -855,8 +855,13 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
 
 	for (; n < npages; n++) {
 		dentry_page = get_lock_data_page(inode, n, false);
-		if (IS_ERR(dentry_page))
-			continue;
+		if (IS_ERR(dentry_page)) {
+			err = PTR_ERR(dentry_page);
+			if (err == -ENOENT)
+				continue;
+			else
+				goto out;
+		}
 
 		dentry_blk = kmap(dentry_page);