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| author | Eric Sandeen <[email protected]> | 2014-06-12 05:39:58 +0000 |
|---|---|---|
| committer | Chris Mason <[email protected]> | 2014-06-13 16:52:28 +0000 |
| commit | 3e2426bd0eb980648449e7a2f5a23e3cd3c7725c (patch) | |
| tree | 4e08fc2ba5d9d174882ca9ad40f43327e701db4c /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | btrfs: free ulist in qgroup_shared_accounting() error path (diff) | |
| download | kernel-3e2426bd0eb980648449e7a2f5a23e3cd3c7725c.tar.gz kernel-3e2426bd0eb980648449e7a2f5a23e3cd3c7725c.zip | |
btrfs: fix use of uninit "ret" in end_extent_writepage()
If this condition in end_extent_writepage() is false:
if (tree->ops && tree->ops->writepage_end_io_hook)
we will then test an uninitialized "ret" at:
ret = ret < 0 ? ret : -EIO;
The test for ret is for the case where ->writepage_end_io_hook
failed, and we'd choose that ret as the error; but if
there is no ->writepage_end_io_hook, nothing sets ret.
Initializing ret to 0 should be sufficient; if
writepage_end_io_hook wasn't set, (!uptodate) means
non-zero err was passed in, so we choose -EIO in that case.
Signed-of-by: Eric Sandeen <[email protected]>
Signed-off-by: Chris Mason <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions