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[UR] Fix some issues in CL PlatformGet turned up by static analysis. #19002

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Merged
merged 2 commits into from
Jun 17, 2025
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[UR] Fix some issues in CL PlatformGet turned up by static analysis. #19002

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[UR] Fix some issues in CL PlatformGet turned up by static analysis.
aarongreig Jun 16, 2025
0aae3c9
Revent lock change.
aarongreig Jun 17, 2025
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9 changes: 8 additions & 1 deletion unified-runtime/source/adapters/opencl/platform.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,14 @@ urPlatformGet(ur_adapter_handle_t, uint32_t NumEntries,
static std::mutex adapterPopulationMutex{};
ur_adapter_handle_t Adapter = nullptr;
UR_RETURN_ON_FAILURE(urAdapterGet(1, &Adapter, nullptr));
if (Adapter && !(Adapter->NumPlatforms)) {
if (!Adapter) {
// The only operation urAdapterGet really performs is allocating the adapter
// handle via new, so no adapter handle here almost certainly means memory
// problems.
return UR_RESULT_ERROR_OUT_OF_RESOURCES;
}

if (Adapter->NumPlatforms == 0) {
std::lock_guard guard{adapterPopulationMutex};

// It's possible for urPlatformGet, if ran on multiple threads, to enter
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