crypto: cavium - Prevent division by zero
Avoid two potential divisions by zero when calculating average values for the zip statistics. Signed-off-by: Jan Glauber <jglauber@cavium.com> Reviewed-by: Robert Richter <rrichter@cavium.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -482,10 +482,11 @@ static int zip_show_stats(struct seq_file *s, void *unused)
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atomic64_add(val, &st->pending_req);
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}
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avg_chunk = (atomic64_read(&st->comp_in_bytes) /
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atomic64_read(&st->comp_req_complete));
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avg_cr = (atomic64_read(&st->comp_in_bytes) /
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atomic64_read(&st->comp_out_bytes));
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val = atomic64_read(&st->comp_req_complete);
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avg_chunk = (val) ? atomic64_read(&st->comp_in_bytes) / val : 0;
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val = atomic64_read(&st->comp_out_bytes);
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avg_cr = (val) ? atomic64_read(&st->comp_in_bytes) / val : 0;
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seq_printf(s, " ZIP Device %d Stats\n"
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"-----------------------------------\n"
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"Comp Req Submitted : \t%lld\n"
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