From 18a38138e4c8fefc0a2e2df6e64076ef039ae0ee Mon Sep 17 00:00:00 2001
From: asava <asava@users.noreply.github.com>
Date: Sat, 21 Mar 2020 18:02:01 +0200
Subject: [PATCH] Fix hang before Clover GUI caused by the use of freepool to
 free alligned pages

---
 rEFIt_UEFI/Platform/StartupSound.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rEFIt_UEFI/Platform/StartupSound.cpp b/rEFIt_UEFI/Platform/StartupSound.cpp
index 76313ef65..2d9d18e86 100644
--- a/rEFIt_UEFI/Platform/StartupSound.cpp
+++ b/rEFIt_UEFI/Platform/StartupSound.cpp
@@ -177,9 +177,10 @@ StartupSoundPlay(EFI_FILE *Dir, CONST CHAR16* SoundFile)
       Tmp = Next;
     }
     freq = EfiAudioIoFreq48kHz;
+    // Samples was allocated via AllocateAlignedPages, so it must not be freed with FreePool, but according to the number of pages allocated
+    FreePages(WaveData.Samples,EFI_SIZE_TO_PAGES(WaveData.SamplesLength+4095));
     WaveData.SamplesLength *= 6;
     DBG("sound converted to 48kHz\n");
-    FreePool(WaveData.Samples);
     WaveData.Samples = (UINT8*)TempData;
   } else {
     TempData = (UINT16*)WaveData.Samples;