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allocator_avl: avoid memory leakage

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Fixes #4013
This commit is contained in:
Alexander Boettcher 2021-02-09 17:25:04 +01:00 committed by Norman Feske
parent 26506673c4
commit c58acd0b2b
1 changed files with 8 additions and 1 deletions
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9
repos/base/src/lib/base/allocator_avl.cc
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@ -108,7 +108,14 @@ Allocator_avl_base::Block *Allocator_avl_base::_alloc_block_metadata()
bool Allocator_avl_base::_alloc_two_blocks_metadata(Block **dst1, Block **dst2) bool Allocator_avl_base::_alloc_two_blocks_metadata(Block **dst1, Block **dst2)
{ {
Block * const b1 = _alloc_block_metadata(); Block * const b1 = _alloc_block_metadata();
Block * const b2 = _alloc_block_metadata(); Block * b2 = nullptr;
try {
b2 = _alloc_block_metadata();
} catch (...) {
if (b1) _md_alloc->free(b1, sizeof(Block));
throw;
}
if (b1 && b2) { if (b1 && b2) {
*dst1 = b1; *dst1 = b1;