diff --git a/cmd/zinject/zinject.c b/cmd/zinject/zinject.c
index 393e50a28..cff7f861a 100644
--- a/cmd/zinject/zinject.c
+++ b/cmd/zinject/zinject.c
@@ -1221,7 +1221,7 @@ main(int argc, char **argv)
 
 		if (dvas != 0) {
 			if (error == EACCES || error == EINVAL) {
-				(void) fprintf(stderr, "the '-c' option may "
+				(void) fprintf(stderr, "the '-C' option may "
 				    "not be used with logical data errors "
 				    "'decrypt' and 'decompress'\n");
 				libzfs_fini(g_zfs);
diff --git a/module/zfs/vdev_mirror.c b/module/zfs/vdev_mirror.c
index a095e0977..59cc2dcdd 100644
--- a/module/zfs/vdev_mirror.c
+++ b/module/zfs/vdev_mirror.c
@@ -257,8 +257,6 @@ vdev_mirror_map_init(zio_t *zio)
 		dsl_scan_t *scn = spa->spa_dsl_pool->dp_scan;
 		dva_t dva_copy[SPA_DVAS_PER_BP];
 
-		c = BP_GET_NDVAS(zio->io_bp);
-
 		/*
 		 * The sequential scrub code sorts and issues all DVAs
 		 * of a bp separately. Each of these IOs includes all