linux-kernel - [PATCH 1/2] jfs: Jump to error_out when filemap

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Message-Id: <997dc120ca508e8a2e757f201cca29f4dbee395d.1471896658.git.quorum.laval@gmail.com>
Date:   Mon, 22 Aug 2016 21:28:59 +0100
From:   Quorum Laval <quorum.laval@...il.com>
To:     shaggy@...nel.org
Cc:     Quorum Laval <quorum.laval@...il.com>,
        jfs-discussion@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] jfs: Jump to error_out when filemap_fdatawait fails

filemap_fdatawait may fail, so check the return value and jump to
error_out in the case of error.

Signed-off-by: Quorum Laval <quorum.laval@...il.com>
---
 fs/jfs/resize.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
index 90b3bc2..b0322da 100644
--- a/fs/jfs/resize.c
+++ b/fs/jfs/resize.c
@@ -379,7 +379,10 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 	 * cached in meta-data cache, and not written out
 	 * by txCommit();
 	 */
-	filemap_fdatawait(ipbmap->i_mapping);
+	rc = filemap_fdatawait(ipbmap->i_mapping);
+	if (rc)
+		goto error_out;
+
 	filemap_write_and_wait(ipbmap->i_mapping);
 	diWriteSpecial(ipbmap, 0);
 
-- 
1.9.1