| commit | 564e559f2baf6a868768d0cac286980b3cfd6e30 | [log] [tgz] |
|---|---|---|
| author | Tony Battersby <tonyb@cybernetics.com> | Wed Feb 11 11:32:30 2015 -0500 |
| committer | Jens Axboe <axboe@fb.com> | Wed Feb 11 09:35:21 2015 -0700 |
| tree | c05956de6d4221f4ce5935902cab4598e7d3a171 | |
| parent | 854fbb9c699e34fe4889e6907c4fc73889192223 [diff] |
blk-mq: fix double-free in error path If the allocation of bt->bs fails, then bt->map can be freed twice, once in blk_mq_init_bitmap_tags() -> bt_alloc(), and once in blk_mq_init_bitmap_tags() -> bt_free(). Fix by setting the pointer to NULL after the first free. Cc: <stable@vger.kernel.org> Signed-off-by: Tony Battersby <tonyb@cybernetics.com> Signed-off-by: Jens Axboe <axboe@fb.com>