Subject: + ocfs2-add-necessary-check-in-case-sb_getblk-fails.patch added to -mm tree
To: rui.xiang@xxxxxxxxxx,jeff.liu@xxxxxxxxxx,jlbec@xxxxxxxxxxxx,mfasheh@xxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 17 Sep 2013 16:26:25 -0700
The patch titled
Subject: ocfs2: add necessary check in case sb_getblk() fails
has been added to the -mm tree. Its filename is
ocfs2-add-necessary-check-in-case-sb_getblk-fails.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ocfs2-add-necessary-check-in-case-sb_getblk-fails.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-add-necessary-check-in-case-sb_getblk-fails.patch
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------------------------------------------------------
From: Rui Xiang <rui.xiang@xxxxxxxxxx>
Subject: ocfs2: add necessary check in case sb_getblk() fails
sb_getblk() may return an err, so add a check for bh.
Signed-off-by: Rui Xiang <rui.xiang@xxxxxxxxxx>
Reviewed-by: Jie Liu <jeff.liu@xxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/refcounttree.c | 5 +++++
1 file changed, 5 insertions(+)
diff -puN fs/ocfs2/refcounttree.c~ocfs2-add-necessary-check-in-case-sb_getblk-fails fs/ocfs2/refcounttree.c
--- a/fs/ocfs2/refcounttree.c~ocfs2-add-necessary-check-in-case-sb_getblk-fails
+++ a/fs/ocfs2/refcounttree.c
@@ -612,6 +612,11 @@ static int ocfs2_create_refcount_tree(st
}
new_bh = sb_getblk(inode->i_sb, first_blkno);
+ if (!new_bh) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ goto out_commit;
+ }
ocfs2_set_new_buffer_uptodate(&new_tree->rf_ci, new_bh);
ret = ocfs2_journal_access_rb(handle, &new_tree->rf_ci, new_bh,
_
Patches currently in -mm which might be from rui.xiang@xxxxxxxxxx are
ocfs2-return-enomem-when-sb_getblk-fails.patch
ocfs2-add-necessary-check-in-case-sb_getblk-fails.patch
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