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| author | Tony Asleson <tasleson@redhat.com> | 2017-09-06 14:25:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-27 11:00:17 +0200 |
| commit | a6c5e7a0cd0184d3cf4fe29b598931329b237569 (patch) | |
| tree | 1cfbed67f0bd9fd599d527409fb5eff610761ba7 /drivers/md/bcache/super.c | |
| parent | d9c6a28a6a1cf0e0854c8175386898288f7f3ddf (diff) | |
bcache: Correct return value for sysfs attach errors
commit 77fa100f27475d08a569b9d51c17722130f089e7 upstream.
If you encounter any errors in bch_cached_dev_attach it will return
a negative error code. The variable 'v' which stores the result is
unsigned, thus user space sees a very large value returned for bytes
written which can cause incorrect user space behavior. Utilize 1
signed variable to use throughout the function to preserve error return
capability.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Acked-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md/bcache/super.c')
0 files changed, 0 insertions, 0 deletions