diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c
index fb766e40a631..5d7f62fe1d5f 100644
--- a/drivers/firmware/meson/meson_sm.c
+++ b/drivers/firmware/meson/meson_sm.c
@@ -310,7 +310,7 @@ static int __init meson_sm_probe(struct platform_device *pdev)
 		fw->sm_shmem_out_base = meson_sm_map_shmem(chip->cmd_shmem_out_base,
 							   chip->shmem_size);
 		if (WARN_ON(!fw->sm_shmem_out_base))
-			goto out_in_base;
+			goto unmap_in_base;
 	}
 
 	fw->chip = chip;
@@ -318,13 +318,15 @@ static int __init meson_sm_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, fw);
 
 	if (devm_of_platform_populate(dev))
-		goto out_in_base;
+		goto unmap_out_base;
 
 	pr_info("secure-monitor enabled\n");
 
 	return 0;
 
-out_in_base:
+unmap_out_base:
+	iounmap(fw->sm_shmem_out_base);
+unmap_in_base:
 	iounmap(fw->sm_shmem_in_base);
 out:
 	return -EINVAL;