diff options
| author | Jan Henrik Weinstock <jan.weinstock@rwth-aachen.de> | 2021-02-01 16:14:59 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-02-10 17:55:55 +1100 |
| commit | e145f5565dc48ccaf4cb50b7cfc48777bed8c100 (patch) | |
| tree | 0e71daa23e4780b7c2a0f10797889506b788e05f /drivers/char/hw_random | |
| parent | 42e6f351dcb05fd1f3e4197fc2286de9eb354b30 (diff) | |
hwrng: timeriomem - Fix cooldown period calculation
Ensure cooldown period tolerance of 1% is actually accounted for.
Fixes: ca3bff70ab32 ("hwrng: timeriomem - Improve performance...")
Signed-off-by: Jan Henrik Weinstock <jan.weinstock@rwth-aachen.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/char/hw_random')
| -rw-r--r-- | drivers/char/hw_random/timeriomem-rng.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c index e262445fed5f..f35f0f31f52a 100644 --- a/drivers/char/hw_random/timeriomem-rng.c +++ b/drivers/char/hw_random/timeriomem-rng.c @@ -69,7 +69,7 @@ static int timeriomem_rng_read(struct hwrng *hwrng, void *data, */ if (retval > 0) usleep_range(period_us, - period_us + min(1, period_us / 100)); + period_us + max(1, period_us / 100)); *(u32 *)data = readl(priv->io_base); retval += sizeof(u32); |