diff --git a/drivers/arm/css/mhu/css_mhu_doorbell.c b/drivers/arm/css/mhu/css_mhu_doorbell.c
index c51f3b1..479bb21 100644
--- a/drivers/arm/css/mhu/css_mhu_doorbell.c
+++ b/drivers/arm/css/mhu/css_mhu_doorbell.c
@@ -15,7 +15,6 @@
 	MHU_RING_DOORBELL(plat_info->db_reg_addr,
 			plat_info->db_modify_mask,
 			plat_info->db_preserve_mask);
-	return;
 }
 
 void mhuv2_ring_doorbell(struct scmi_channel_plat_info *plat_info)
@@ -35,6 +34,4 @@
 
 	/* clear the access request for the receiver */
 	MHU_V2_CLEAR_REQUEST(mhuv2_base);
-
-	return;
 }
diff --git a/plat/imx/common/sci/svc/pm/pm_rpc_clnt.c b/plat/imx/common/sci/svc/pm/pm_rpc_clnt.c
index 66a57a1..228cff8 100644
--- a/plat/imx/common/sci/svc/pm/pm_rpc_clnt.c
+++ b/plat/imx/common/sci/svc/pm/pm_rpc_clnt.c
@@ -412,8 +412,6 @@
 	RPC_SIZE(&msg) = 2U;
 
 	sc_call_rpc(ipc, &msg, SC_TRUE);
-
-	return;
 }
 
 sc_err_t sc_pm_reboot_partition(sc_ipc_t ipc, sc_rm_pt_t pt,
diff --git a/plat/imx/common/sci/svc/rm/rm_rpc_clnt.c b/plat/imx/common/sci/svc/rm/rm_rpc_clnt.c
index 16771a5..2cea01f 100644
--- a/plat/imx/common/sci/svc/rm/rm_rpc_clnt.c
+++ b/plat/imx/common/sci/svc/rm/rm_rpc_clnt.c
@@ -632,8 +632,6 @@
 	RPC_SIZE(&msg) = 1U;
 
 	sc_call_rpc(ipc, &msg, SC_FALSE);
-
-	return;
 }
 
 /**@}*/
diff --git a/plat/nvidia/tegra/soc/t194/plat_ras.c b/plat/nvidia/tegra/soc/t194/plat_ras.c
index 02f6158..a9fed0a 100644
--- a/plat/nvidia/tegra/soc/t194/plat_ras.c
+++ b/plat/nvidia/tegra/soc/t194/plat_ras.c
@@ -249,7 +249,6 @@
 	 * of range.
 	 */
 	*cookie = 0ULL;
-	return;
 }
 
 /* Function to probe an error from error record group. */