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dm: test return value for DM_MAPIO_SUBMITTED
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>
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@ -1466,7 +1466,7 @@ static void __map_bio(struct dm_target_io *tio)
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md = tio->io->md;
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dec_pending(tio->io, r);
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free_tio(md, tio);
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} else if (r) {
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} else if (r != DM_MAPIO_SUBMITTED) {
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DMWARN("unimplemented target map return value: %d", r);
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BUG();
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}
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