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Unmapping an unmapped buffer should succeed

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Hardware tests show that trying to unmap an unmapped buffer already should always succeed. Hardware test was tested up to 32 iterations of attempting to unmap
This commit is contained in:
David Marcec 2018-10-08 13:26:48 +11:00
parent e5d1e17fc1
commit cc2c45efcc
1 changed files with 6 additions and 1 deletions
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7
src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
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@ -157,7 +157,12 @@ u32 nvhost_as_gpu::UnmapBuffer(const std::vector<u8>& input, std::vector<u8>& ou
LOG_DEBUG(Service_NVDRV, "called, offset=0x{:X}", params.offset);
const auto itr = buffer_mappings.find(params.offset);
ASSERT_MSG(itr != buffer_mappings.end(), "Tried to unmap invalid mapping");
if (itr == buffer_mappings.end()) {
LOG_WARNING(Service_NVDRV, "Tried to unmap an invalid offset 0x{:X}", params.offset);
// Hardware tests shows that unmapping an already unmapped buffer always returns successful
// and doesn't fail.
return 0;
}
auto& system_instance = Core::System::GetInstance();