diff --git a/sys/arm/mv/mv_ap806_sei.c b/sys/arm/mv/mv_ap806_sei.c
--- a/sys/arm/mv/mv_ap806_sei.c
+++ b/sys/arm/mv/mv_ap806_sei.c
@@ -367,7 +367,7 @@
 		if (rv != 0)
 			goto fail; /* XXX deregister ISRCs */
 	}
-	xref = OF_xref_from_node(node);;
+	xref = OF_xref_from_node(node);
 	if (intr_pic_register(dev, xref) == NULL) {
 		device_printf(dev, "Cannot register SEI\n");
 		rv = ENXIO;
diff --git a/sys/arm64/nvidia/tegra210/max77620.c b/sys/arm64/nvidia/tegra210/max77620.c
--- a/sys/arm64/nvidia/tegra210/max77620.c
+++ b/sys/arm64/nvidia/tegra210/max77620.c
@@ -291,7 +291,7 @@
 static int
 max77620_init(struct max77620_softc *sc)
 {
-	uint8_t mask, val, tmp;;
+	uint8_t mask, val, tmp;
 	int i, rv;
 
 	mask = 0;
diff --git a/sys/compat/linux/linux_ioctl.c b/sys/compat/linux/linux_ioctl.c
--- a/sys/compat/linux/linux_ioctl.c
+++ b/sys/compat/linux/linux_ioctl.c
@@ -285,7 +285,7 @@
 		fdrop(fp, td);
 		if (error)
 			return (error);
-		blksize64 = mediasize;;
+		blksize64 = mediasize;
 		return (copyout(&blksize64, (void *)args->arg,
 		    sizeof(blksize64)));
 	case LINUX_BLKSSZGET:
diff --git a/sys/dev/axgbe/if_axgbe_pci.c b/sys/dev/axgbe/if_axgbe_pci.c
--- a/sys/dev/axgbe/if_axgbe_pci.c
+++ b/sys/dev/axgbe/if_axgbe_pci.c
@@ -588,7 +588,7 @@
 static void
 axgbe_set_counts(if_ctx_t ctx)
 {
-	struct axgbe_if_softc *sc = iflib_get_softc(ctx);;
+	struct axgbe_if_softc *sc = iflib_get_softc(ctx);
 	struct xgbe_prv_data *pdata = &sc->pdata;
 	cpuset_t lcpus;
 	int cpu_count, err;
diff --git a/sys/dev/e1000/if_em.c b/sys/dev/e1000/if_em.c
--- a/sys/dev/e1000/if_em.c
+++ b/sys/dev/e1000/if_em.c
@@ -901,7 +901,7 @@
 		 * that it shall give MSI at least a try with other devices.
 		 */
 		if (hw->mac.type == e1000_82574) {
-			scctx->isc_msix_bar = pci_msix_table_bar(dev);;
+			scctx->isc_msix_bar = pci_msix_table_bar(dev);
 		} else {
 			scctx->isc_msix_bar = -1;
 			scctx->isc_disable_msix = 1;
diff --git a/sys/dev/etherswitch/felix/felix.c b/sys/dev/etherswitch/felix/felix.c
--- a/sys/dev/etherswitch/felix/felix.c
+++ b/sys/dev/etherswitch/felix/felix.c
@@ -197,7 +197,7 @@
 		return (0);
 	}
 
-	sc->ports[port].fixed_port = true;;
+	sc->ports[port].fixed_port = true;
 
 	if (OF_getencprop(node, "speed", &status, sizeof(status)) <= 0) {
 		device_printf(sc->dev,
diff --git a/sys/dev/fdt/simple_mfd.c b/sys/dev/fdt/simple_mfd.c
--- a/sys/dev/fdt/simple_mfd.c
+++ b/sys/dev/fdt/simple_mfd.c
@@ -89,7 +89,7 @@
 	uint32_t val;
 
 	sc = device_get_softc(syscon->pdev);
-	SYSCON_ASSERT_LOCKED(sc);;
+	SYSCON_ASSERT_LOCKED(sc);
 	val = bus_read_4(sc->mem_res, offset);
 	return (val);
 }
diff --git a/sys/dev/netmap/netmap_kern.h b/sys/dev/netmap/netmap_kern.h
--- a/sys/dev/netmap/netmap_kern.h
+++ b/sys/dev/netmap/netmap_kern.h
@@ -2128,7 +2128,7 @@
  * native netmap support.
  */
 int generic_netmap_attach(struct ifnet *ifp);
-int generic_rx_handler(struct ifnet *ifp, struct mbuf *m);;
+int generic_rx_handler(struct ifnet *ifp, struct mbuf *m);
 
 int nm_os_catch_rx(struct netmap_generic_adapter *gna, int intercept);
 int nm_os_catch_tx(struct netmap_generic_adapter *gna, int intercept);
diff --git a/sys/dev/ocs_fc/ocs_domain.h b/sys/dev/ocs_fc/ocs_domain.h
--- a/sys/dev/ocs_fc/ocs_domain.h
+++ b/sys/dev/ocs_fc/ocs_domain.h
@@ -87,5 +87,5 @@
 extern int ocs_domain_post_event(ocs_domain_t *domain, ocs_sm_event_t, void *);
 
 extern int ocs_ddump_domain(ocs_textbuf_t *textbuf, ocs_domain_t *domain);
-extern void __ocs_domain_attach_internal(ocs_domain_t *domain, uint32_t s_id);;
+extern void __ocs_domain_attach_internal(ocs_domain_t *domain, uint32_t s_id);
 #endif
diff --git a/sys/netinet6/ip6_output.c b/sys/netinet6/ip6_output.c
--- a/sys/netinet6/ip6_output.c
+++ b/sys/netinet6/ip6_output.c
@@ -769,7 +769,7 @@
 		if (nh == NULL) {
 			IP6STAT_INC(ip6s_noroute);
 			/* No ifp in6_ifstat_inc(ifp, ifs6_out_discard); */
-			error = EHOSTUNREACH;;
+			error = EHOSTUNREACH;
 			goto bad;
 		}
 
diff --git a/sys/netpfil/ipfw/dn_aqm_codel.h b/sys/netpfil/ipfw/dn_aqm_codel.h
--- a/sys/netpfil/ipfw/dn_aqm_codel.h
+++ b/sys/netpfil/ipfw/dn_aqm_codel.h
@@ -139,7 +139,7 @@
 	aqm_time_t now;
 	uint16_t ok_to_drop;
 
-	cst = q->aqm_status;;
+	cst = q->aqm_status;
 	cprms = q->fs->aqmcfg;
 	now = AQM_UNOW;
 
diff --git a/sys/sys/unpcb.h b/sys/sys/unpcb.h
--- a/sys/sys/unpcb.h
+++ b/sys/sys/unpcb.h
@@ -174,7 +174,7 @@
 	u_int	xug_count;
 	unp_gen_t xug_gen;
 	so_gen_t xug_sogen;
-} __aligned(8);;
+} __aligned(8);
 #endif /* _SYS_SOCKETVAR_H_ */
 
 #if defined(_KERNEL)