diff options
| author | Sergey Senozhatsky | 2015-09-09 00:00:53 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2015-09-09 00:35:28 +0200 |
| commit | 4e3ca3e033d1eea62fa16c3fdbef4f20427bd0de (patch) | |
| tree | 34ff5ce0159e781d1b8ca208ff827e53d37545a8 /mm/dmapool.c | |
| parent | mm/slab_common: allow NULL cache pointer in kmem_cache_destroy() (diff) | |
| download | kernel-qcow2-linux-4e3ca3e033d1eea62fa16c3fdbef4f20427bd0de.tar.gz kernel-qcow2-linux-4e3ca3e033d1eea62fa16c3fdbef4f20427bd0de.tar.xz kernel-qcow2-linux-4e3ca3e033d1eea62fa16c3fdbef4f20427bd0de.zip | |
mm/mempool: allow NULL `pool' pointer in mempool_destroy()
mempool_destroy() does not tolerate a NULL mempool_t pointer argument and
performs a NULL-pointer dereference. This requires additional attention
and effort from developers/reviewers and forces all mempool_destroy()
callers to do a NULL check
if (pool)
mempool_destroy(pool);
Or, otherwise, be invalid mempool_destroy() users.
Tweak mempool_destroy() and NULL-check the pointer there.
Proposed by Andrew Morton.
Link: https://lkml.org/lkml/2015/6/8/583
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/dmapool.c')
0 files changed, 0 insertions, 0 deletions