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LibC: Don't leak memory for realloc(p, 0)

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Previously we'd leak memory when the user called realloc(p, 0). Instead
this call should behave as if the user had called free(p).
This commit is contained in:
Gunnar Beutner 2021-05-29 14:46:10 +02:00 • committed by Andreas Kling
commit ea33e9647b
Notes: sideshowbarker 2024-07-18 17:12:13 +09:00
1 changed files with 3 additions and 1 deletions
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4
Userland/Libraries/LibC/malloc.cpp
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@ -437,8 +437,10 @@ void* realloc(void* ptr, size_t size)
{
if (!ptr)
return malloc(size);
if (!size)
if (!size) {
free(ptr);
return nullptr;
}
Threading::Locker locker(malloc_lock());
auto existing_allocation_size = malloc_size(ptr);