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Fix sys_semaphore_post count check

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eladash 2018-12-26 16:28:26 +02:00 committed by Ivan
parent 653a4ef0df
commit 4b65c3943c
1 changed files with 6 additions and 6 deletions
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12
rpcs3/Emu/Cell/lv2/sys_semaphore.cpp
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@ -201,16 +201,11 @@ error_code sys_semaphore_post(ppu_thread& ppu, u32 sem_id, s32 count)
{ {
sys_semaphore.trace("sys_semaphore_post(sem_id=0x%x, count=%d)", sem_id, count); sys_semaphore.trace("sys_semaphore_post(sem_id=0x%x, count=%d)", sem_id, count);
if (count < 0)
{
return CELL_EINVAL;
}
const auto sem = idm::get<lv2_obj, lv2_sema>(sem_id, [&](lv2_sema& sema) const auto sem = idm::get<lv2_obj, lv2_sema>(sem_id, [&](lv2_sema& sema)
{ {
const s32 val = sema.val; const s32 val = sema.val;
if (val >= 0 && count <= sema.max - val) if (val >= 0 && count > 0 && count <= sema.max - val)
{ {
if (sema.val.compare_and_swap_test(val, val + count)) if (sema.val.compare_and_swap_test(val, val + count))
{ {
@ -226,6 +221,11 @@ error_code sys_semaphore_post(ppu_thread& ppu, u32 sem_id, s32 count)
return CELL_ESRCH; return CELL_ESRCH;
} }
if (count <= 0)
{
return CELL_EINVAL;
}
if (sem.ret) if (sem.ret)
{ {
return CELL_OK; return CELL_OK;