diff options
Diffstat (limited to 'src/kernel/core/prng.c')
| -rw-r--r-- | src/kernel/core/prng.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/kernel/core/prng.c b/src/kernel/core/prng.c index dbffba5..77dff7d 100644 --- a/src/kernel/core/prng.c +++ b/src/kernel/core/prng.c @@ -11,6 +11,8 @@ static const uint32_t a = 16807; static const uint32_t m = 0x7FFFFFFF; uint16_t prng_word() { + int st = enter_critical(CL_NOINT); + if (++n >= 100) { n = 0; if (entropy_count) { @@ -18,7 +20,12 @@ uint16_t prng_word() { } } x = (x * a) % m; - return x & 0xFFFF; + + uint16_t ret = x & 0xFFFF; + + exit_critical(st); + + return ret; } void prng_bytes(uint8_t* out, size_t nbytes) { |