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| author | Su Yue <suy.fnst@cn.fujitsu.com> | 2018-05-30 16:48:56 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-26 07:53:57 +0800 |
| commit | 9d34f80bb43710641f5a8e3036deb421cf5d1da7 (patch) | |
| tree | b96822879e40ce0a030eaed3f213a303269ad64b /tools/perf/scripts/python/stackcollapse.py | |
| parent | f796fd45312ba2837978443f66b429e4a1bb4653 (diff) | |
btrfs: return error value if create_io_em failed in cow_file_range
commit 090a127afa8f73e9618d4058d6755f7ec7453dd6 upstream.
In cow_file_range(), create_io_em() may fail, but its return value is
not recorded. Then return value may be 0 even it failed which is a
wrong behavior.
Let cow_file_range() return PTR_ERR(em) if create_io_em() failed.
Fixes: 6f9994dbabe5 ("Btrfs: create a helper to create em for IO")
CC: stable@vger.kernel.org # 4.11+
Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions