From fad57b648f61e4a393c4e59b7a80335533b9364d Mon Sep 17 00:00:00 2001
From: JosJuice <josjuice@gmail.com>
Date: Thu, 4 Apr 2024 18:42:23 +0200
Subject: [PATCH] Memmap: Don't show panic alert for 0 length range

IOS::HLE::IOCtlVRequest::Dump sometimes tries to call GetPointerForRange
with an address of 0 and a size of 0. Address 0 is valid, but we were
mistakenly also trying to check that address 3FFFFFFF is valid, which it
isn't.

Fixes https://bugs.dolphin-emu.org/issues/13514.
---
 Source/Core/Core/HW/Memmap.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/Core/Core/HW/Memmap.cpp b/Source/Core/Core/HW/Memmap.cpp
index 02d31c8272..ca17b5db80 100644
--- a/Source/Core/Core/HW/Memmap.cpp
+++ b/Source/Core/Core/HW/Memmap.cpp
@@ -409,7 +409,7 @@ u8* MemoryManager::GetPointerForRange(u32 address, size_t size) const
 
   // Check that the beginning and end of the range are valid
   u8* pointer = GetPointer(address);
-  if (!pointer || !GetPointer(address + u32(size) - 1))
+  if (pointer == nullptr || (size != 0 && GetPointer(address + u32(size) - 1) == nullptr))
   {
     // A panic alert has already been raised by GetPointer
     return nullptr;