Commit 14ff108b authored by Scott Vokes's avatar Scott Vokes
Browse files

Close race condition in pop.

parent 19312d8c

src/lib/bus/casq.c

+1 −1
Original line number Diff line number Diff line
@@ -113,7 +113,7 @@ void *casq_pop(struct casq *q) { 
            l->data = NULL;

            for (;;) {              /* spin, push */

                l->next = q->free_links;

                if (ATOMIC_BOOL_COMPARE_AND_SWAP(&q->free_links, q->free_links, l)) {

                if (ATOMIC_BOOL_COMPARE_AND_SWAP(&q->free_links, l->next, l)) {

                    break;

                }

            }