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>

diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
index 03ff548..f615684 100644 (file)
--- 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