msm_rng: remove the check if zero is read from register



As zero is a valid random number, don't need to
check if zero value is read from register.

Change-Id: I0b63a6c38f65d6deaaf725ec1f98f79fee9b0dcb
Signed-off-by: Zhen Kong <zkong@codeaurora.org>

parent 1cc4edf0

drivers/char/hw_random/msm_rng.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -138,8 +138,6 @@ static int msm_rng_direct_read(struct msm_rng_device *msm_rng_dev,

		/* read FIFO */
		val = readl_relaxed(base + PRNG_DATA_OUT_OFFSET);
		if (!val)
		break; /* no data to read so just bail */

		/* write data back to callers pointer */
		*(retdata++) = val;