From: John Hodge <tpg@mutabah.net>
Date: Sat, 10 May 2014 07:40:07 +0000 (+0800)
Subject: Kernel/heap - Check for free(NULL) and silently ignore
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=15ee623d18ed68984e486c4d578c7cce5377aebd;p=tpg%2Facess2.git

Kernel/heap - Check for free(NULL) and silently ignore
---

diff --git a/KernelLand/Kernel/heap.c b/KernelLand/Kernel/heap.c
index f7054ea4..ba4c9adb 100755
--- a/KernelLand/Kernel/heap.c
+++ b/KernelLand/Kernel/heap.c
@@ -353,6 +353,8 @@ void Heap_Deallocate(const char *File, int Line, void *Ptr)
 	// INVLPTR is returned from Heap_Allocate when the allocation
 	// size is zero.
 	if( Ptr == INVLPTR )	return;
+	// free(NULL) is a no-op
+	if( Ptr == NULL )	return;
 	
 	// Alignment Check
 	if( (tVAddr)Ptr % sizeof(void*) != 0 ) {