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[BZ #2775]

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* malloc/malloc.c (sYSMALLOc): Only call grow_heap if
	(long) (MINSIZE + nb - old_size) is positive.

	* malloc/arena.c (grow_heap): When growing bail even if new_size
	is negative.
This commit is contained in:
Ulrich Drepper
2006-09-07 16:06:54 +00:00
parent ba40cc1540
commit 469615bdd4
3 changed files with 10 additions and 2 deletions
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3
malloc/malloc.c
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@ -2970,7 +2970,8 @@ static Void_t* sYSMALLOc(nb, av) INTERNAL_SIZE_T nb; mstate av;
/* First try to extend the current heap. */
old_heap = heap_for_ptr(old_top);
old_heap_size = old_heap->size;
if (grow_heap(old_heap, MINSIZE + nb - old_size) == 0) {
if ((long) (MINSIZE + nb - old_size) > 0
&& grow_heap(old_heap, MINSIZE + nb - old_size) == 0) {
av->system_mem += old_heap->size - old_heap_size;
arena_mem += old_heap->size - old_heap_size;
#if 0