linux-kernel - [PATCH] f2fs: fix to release inode page in get_new_data

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Date:	Thu, 09 Jul 2015 18:20:08 +0800
From:	Chao Yu <chao2.yu@...sung.com>
To:	Jaegeuk Kim <jaegeuk@...nel.org>
Cc:	linux-f2fs-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: [PATCH] f2fs: fix to release inode page in get_new_data_page

get_new_data_page should release inode page when we encounter any
error in its procedure, but there is one error path didn't cover
this, fix it.

Signed-off-by: Chao Yu <chao2.yu@...sung.com>
---
 fs/f2fs/data.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 08dfdc6..ea8898b 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -397,8 +397,10 @@ struct page *get_new_data_page(struct inode *inode,
 	int err;
 repeat:
 	page = grab_cache_page(mapping, index);
-	if (!page)
+	if (!page) {
+		f2fs_put_page(ipage, 1);
 		return ERR_PTR(-ENOMEM);
+	}
 
 	set_new_dnode(&dn, inode, ipage, NULL, 0);
 	err = f2fs_reserve_block(&dn, index);
-- 
2.4.2


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