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Commit da0ccd3e authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "rng: lock global variable before accessing."

parents 24d6d1dd 64f0f97c

drivers/char/hw_random/core.c

+5 −1
Original line number Diff line number Diff line
@@ -346,8 +346,12 @@ static int hwrng_fillfn(void *unused) 
	long rc;



	while (!kthread_should_stop()) {

		if (!current_rng)

		mutex_lock(&rng_mutex);

		if (!current_rng) {

			mutex_unlock(&rng_mutex);

			break;

		}

		mutex_unlock(&rng_mutex);

		rc = rng_get_data(current_rng, rng_fillbuf,

				  rng_buffer_size(), 1);

		if (rc <= 0) {