1 files changed, 2 insertions, 1 deletions

diff --git a/src/microhttpd/memorypool.c b/src/microhttpd/memorypool.c
index fbc94659..41503f63 100644
--- a/src/microhttpd/memorypool.c
+++ b/src/microhttpd/memorypool.c
@@ -470,7 +470,7 @@ MHD_pool_is_resizable_inplace (struct MemoryPool *pool,
  * @param size the size of memory in bytes to allocate
  * @param[out] required_bytes the pointer to variable to be updated with
  *                            the size of the required additional free
- *                            memory area, not updated if function succeed.
+ *                            memory area, set to 0 if function succeeds.
  *                            Cannot be NULL.
  * @return the pointer to allocated memory area if succeed,
  *         NULL if the pool doesn't have enough space, required_bytes is updated
@@ -504,6 +504,7 @@ MHD_pool_try_alloc (struct MemoryPool *pool,
       *required_bytes = SIZE_MAX;
     return NULL;
   }
+  *required_bytes = 0;
   ret = &pool->memory[pool->end - asize];
   pool->end -= asize;
   _MHD_UNPOISON_MEMORY (ret, size);