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dm: test return value for DM_MAPIO_SUBMITTED

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In properly written code we should not assume that DM_MAPIO_SUBMITTED is
zero. We should test the return value for DM_MAPIO_SUBMITTED rather than
testing it for zero.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mikulas Patocka 2015-07-01 17:30:36 -04:00 committed by Mike Snitzer
parent 4fb9aa5abd
commit ab37844d61
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm.c
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@ -1466,7 +1466,7 @@ static void __map_bio(struct dm_target_io *tio)
md = tio->io->md; md = tio->io->md;
dec_pending(tio->io, r); dec_pending(tio->io, r);
free_tio(md, tio); free_tio(md, tio);
} else if (r) { } else if (r != DM_MAPIO_SUBMITTED) {
DMWARN("unimplemented target map return value: %d", r); DMWARN("unimplemented target map return value: %d", r);
BUG(); BUG();
} }