lvella/suyu
1
0
Fork 0
forked from suyu/suyu
Code Pull requests Activity

Merge pull request #1830 from Subv/vi_ub

Browse source 
Services/VI: Dereferencing an uninitialized std::optional is undefined behavior.
This commit is contained in:
bunnei 2018-12-01 22:25:10 -05:00 committed by GitHub
commit 97e73591e3
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/core/hle/service/vi/vi.cpp
View file

@ -542,6 +542,8 @@ private:
// Repeat TransactParcel DequeueBuffer when a buffer is available // Repeat TransactParcel DequeueBuffer when a buffer is available
auto buffer_queue = nv_flinger->GetBufferQueue(id); auto buffer_queue = nv_flinger->GetBufferQueue(id);
std::optional<u32> slot = buffer_queue->DequeueBuffer(width, height); std::optional<u32> slot = buffer_queue->DequeueBuffer(width, height);
ASSERT_MSG(slot != std::nullopt, "Could not dequeue buffer.");
IGBPDequeueBufferResponseParcel response{*slot}; IGBPDequeueBufferResponseParcel response{*slot};
ctx.WriteBuffer(response.Serialize()); ctx.WriteBuffer(response.Serialize());
IPC::ResponseBuilder rb{ctx, 2}; IPC::ResponseBuilder rb{ctx, 2};