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k_system_control: Fix data race 

`return distribution(gen)` is a data race between a read and a write in
two threads, reported by TSan. Remove static random number generators so
they aren't using the same generator.
This commit is contained in:
lat9nq 2022-04-05 00:37:46 -04:00
parent 983916e919
commit b976cac49d
1 changed files with 3 additions and 3 deletions
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6
src/core/hle/kernel/board/nintendo/nx/k_system_control.cpp
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@ -148,9 +148,9 @@ u64 GenerateUniformRange(u64 min, u64 max, F f) {
} // Anonymous namespace } // Anonymous namespace
u64 KSystemControl::GenerateRandomU64() { u64 KSystemControl::GenerateRandomU64() {
static std::random_device device; std::random_device device;
static std::mt19937 gen(device()); std::mt19937 gen(device());
static std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max()); std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
return distribution(gen); return distribution(gen);
} }