[Spice-devel] [PATCH 2/7] Grab malloc_sem in FreeMem

[alexl at redhat.com]

From: Alexander Larsson <alexl at redhat.com>

This is needed as much as in AllocMem to protect the mspaces data
from concurrent access.
---
 display/res.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/display/res.c b/display/res.c
index 1f67dbf..6fe375f 100644
--- a/display/res.c
+++ b/display/res.c
@@ -337,7 +337,9 @@ static void FreeMem(PDev* pdev, UINT32 mspace_type, void *ptr)
     ASSERT(pdev, pdev && pdev->Res.mspaces[mspace_type]._mspace);
     ASSERT(pdev, (UINT8 *)ptr >= pdev->Res.mspaces[mspace_type].mspace_start && 
                  (UINT8 *)ptr < pdev->Res.mspaces[mspace_type].mspace_end);
+    EngAcquireSemaphore(pdev->Res.malloc_sem);
     mspace_free(pdev->Res.mspaces[mspace_type]._mspace, ptr);
+    EngReleaseSemaphore(pdev->Res.malloc_sem);
 }
 
 DevRes *global_res = NULL;
-- 
1.7.2.1