zbd: avoid failing assertion in zbd_convert_to_open_zone()

[fio.git] / zbd.c

diff --git a/zbd.c b/zbd.c
index 1ee238e85f242e3e35f736ae72e09f57b478f98c..8583f2ac23d70009287439a946f27f9ba4b68bd1 100644 (file)
--- a/zbd.c
+++ b/zbd.c
@@ -1107,7 +1107,8 @@ static struct fio_zone_info *zbd_convert_to_open_zone(struct thread_data *td,
                 * Ignore zones which don't belong to thread's offset/size area.
                 */
                open_zone_idx = pick_random_zone_idx(f, io_u);
-               assert(open_zone_idx < f->zbd_info->num_open_zones);
+               assert(!open_zone_idx ||
+                      open_zone_idx < f->zbd_info->num_open_zones);
                tmp_idx = open_zone_idx;
                for (i = 0; i < f->zbd_info->num_open_zones; i++) {
                        uint32_t tmpz;