Avoid two potential divisions by zero when calculating average values for the zip statistics. Signed-off-by: Jan Glauber <jglauber@xxxxxxxxxx> Reviewed-by: Robert Richter <rrichter@xxxxxxxxxx> --- drivers/crypto/cavium/zip/zip_main.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/cavium/zip/zip_main.c b/drivers/crypto/cavium/zip/zip_main.c index 1cd8aa488185..79b449e0f955 100644 --- a/drivers/crypto/cavium/zip/zip_main.c +++ b/drivers/crypto/cavium/zip/zip_main.c @@ -482,10 +482,11 @@ static int zip_show_stats(struct seq_file *s, void *unused) atomic64_add(val, &st->pending_req); } - avg_chunk = (atomic64_read(&st->comp_in_bytes) / - atomic64_read(&st->comp_req_complete)); - avg_cr = (atomic64_read(&st->comp_in_bytes) / - atomic64_read(&st->comp_out_bytes)); + val = atomic64_read(&st->comp_req_complete); + avg_chunk = (val) ? atomic64_read(&st->comp_in_bytes) / val : 0; + + val = atomic64_read(&st->comp_out_bytes); + avg_cr = (val) ? atomic64_read(&st->comp_in_bytes) / val : 0; seq_printf(s, " ZIP Device %d Stats\n" "-----------------------------------\n" "Comp Req Submitted : \t%lld\n" -- 2.16.2
