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Prevent false positives when freeing a NULL pointer with MALLOC_DEBUG enabled.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@203230 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2009-06-25 18:52:22 +00:00
parent c05d6ceccd
commit 140d84dfc5
1 changed files with 7 additions and 1 deletions
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8
main/astmm.c
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@@ -157,10 +157,16 @@ static inline size_t __ast_sizeof_region(void *ptr)
static void __ast_free_region(void *ptr, const char *file, int lineno, const char *func) static void __ast_free_region(void *ptr, const char *file, int lineno, const char *func)
{ {
int hash = HASH(ptr); int hash;
struct ast_region *reg, *prev = NULL; struct ast_region *reg, *prev = NULL;
unsigned int *fence; unsigned int *fence;
if (!ptr) {
return;
}
hash = HASH(ptr);
ast_mutex_lock(&reglock); ast_mutex_lock(&reglock);
for (reg = regions[hash]; reg; reg = reg->next) { for (reg = regions[hash]; reg; reg = reg->next) {
if (reg->data == ptr) { if (reg->data == ptr) {