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| author | Jan Henrik Weinstock <jan.weinstock@rwth-aachen.de> | 2021-02-01 16:14:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-04 10:26:24 +0100 |
| commit | cba03a29611cbdcc2daa9612110738fdf60d8148 (patch) | |
| tree | e7d7fc079da3e64e23e9031294c8148f6b2027d1 /drivers/char | |
| parent | 6f651ec266ba18338f8bccecaecc0eb41974a5fc (diff) | |
| download | linux-cba03a29611cbdcc2daa9612110738fdf60d8148.tar.gz linux-cba03a29611cbdcc2daa9612110738fdf60d8148.tar.bz2 linux-cba03a29611cbdcc2daa9612110738fdf60d8148.zip | |
hwrng: timeriomem - Fix cooldown period calculation
[ Upstream commit e145f5565dc48ccaf4cb50b7cfc48777bed8c100 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/char')
| -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); |