summaryrefslogtreecommitdiff
path: root/drivers/char/hw_random
diff options
context:
space:
mode:
authorPrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>2017-08-22 21:52:24 +0530
committerHerbert Xu <herbert@gondor.apana.org.au>2017-09-22 17:43:14 +0800
commitc0133b009ec28eee27966f6e3ed99bfdb3f17a21 (patch)
treef5127b1ba0047c57ad6041085ad830b1f8df4b47 /drivers/char/hw_random
parent46d93748e5a3628f9f553832cd64d8a59d8bafde (diff)
hwrng: timeriomem - Remove 'max < 4' condition check
In read routiene max is always >= 4. The check whether 'max < 4' is not necessary. Remove it. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Acked-By: Rick Altherr <raltherr@google.com> 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.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
index 03ff5483d865..f615684028af 100644
--- a/drivers/char/hw_random/timeriomem-rng.c
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -53,13 +53,6 @@ static int timeriomem_rng_read(struct hwrng *hwrng, void *data,
int period_us = ktime_to_us(priv->period);
/*
- * The RNG provides 32-bits per read. Ensure there is enough space for
- * at minimum one read.
- */
- if (max < sizeof(u32))
- return 0;
-
- /*
* There may not have been enough time for new data to be generated
* since the last request. If the caller doesn't want to wait, let them
* bail out. Otherwise, wait for the completion. If the new data has