diff options
Diffstat (limited to 'drivers/char/random.c')
| -rw-r--r-- | drivers/char/random.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index a1af90bacc9f..0c6568ae5f68 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -643,10 +643,10 @@ static void __cold _credit_init_bits(size_t bits) add = min_t(size_t, bits, POOL_BITS); + orig = READ_ONCE(input_pool.init_bits); do { - orig = READ_ONCE(input_pool.init_bits); new = min_t(unsigned int, POOL_BITS, orig + add); - } while (cmpxchg(&input_pool.init_bits, orig, new) != orig); + } while (!try_cmpxchg(&input_pool.init_bits, &orig, new)); if (orig < POOL_READY_BITS && new >= POOL_READY_BITS) { crng_reseed(); /* Sets crng_init to CRNG_READY under base_crng.lock. */ |