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ext4: avoid trying to kfree an ERR_PTR pointer

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Thanks to Dan Carpenter for extending smatch to find bugs like this.
(This was found using a development version of smatch.)

Fixes: 36de928641
Reported-by: Dan Carpenter <dan.carpenter@oracle.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
This commit is contained in:
Theodore Ts'o 2014-09-03 09:33:00 -04:00
parent d4f03186c8
commit a9cfcd63e8
2 changed files with 4 additions and 0 deletions
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2
fs/ext4/resize.c
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@ -575,6 +575,7 @@ handle_bb:
bh = bclean(handle, sb, block);
if (IS_ERR(bh)) {
err = PTR_ERR(bh);
bh = NULL;
goto out;
}
overhead = ext4_group_overhead_blocks(sb, group);
@ -603,6 +604,7 @@ handle_ib:
bh = bclean(handle, sb, block);
if (IS_ERR(bh)) {
err = PTR_ERR(bh);
bh = NULL;
goto out;
}