linux-kernel - [f2fs-dev] [PATCH 4/5] f2fs: check return value of f2fs_readpage in find_data

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Message-id: <003601ceec0d$bcc30330$36490990$@samsung.com>
Date:	Thu, 28 Nov 2013 15:43:43 +0800
From:	Chao Yu <chao2.yu@...sung.com>
To:	??? <jaegeuk.kim@...sung.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net,
	谭姝 <shu.tan@...sung.com>
Subject: [f2fs-dev] [PATCH 4/5] f2fs: check return value of f2fs_readpage in
 find_data_page

We should return error if we do not get an updated page in find_date_page
when f2fs_readpage failed.

Signed-off-by: Chao Yu <chao2.yu@...sung.com>
---
 fs/f2fs/data.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 2d02cf3..85071d6 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -240,6 +240,9 @@ struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync)
 
 	err = f2fs_readpage(sbi, page, dn.data_blkaddr,
 					sync ? READ_SYNC : READA);
+	if (err)
+		return ERR_PTR(err);
+
 	if (sync) {
 		wait_on_page_locked(page);
 		if (!PageUptodate(page)) {
-- 
1.7.9.5

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