diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 116b244..3e626fd 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -510,7 +510,8 @@
 		vendor = del_var->VendorGuid;
 	}
 
-	efivar_entry_iter_begin();
+	if (efivar_entry_iter_begin())
+		return -EINTR;
 	entry = efivar_entry_find(name, vendor, &efivar_sysfs_list, true);
 	if (!entry)
 		err = -EINVAL;
@@ -575,7 +576,10 @@
 		return ret;
 
 	kobject_uevent(&new_var->kobj, KOBJ_ADD);
-	efivar_entry_add(new_var, &efivar_sysfs_list);
+	if (efivar_entry_add(new_var, &efivar_sysfs_list)) {
+		efivar_unregister(new_var);
+		return -EINTR;
+	}
 
 	return 0;
 }
@@ -690,7 +694,10 @@
 
 static int efivar_sysfs_destroy(struct efivar_entry *entry, void *data)
 {
-	efivar_entry_remove(entry);
+	int err = efivar_entry_remove(entry);
+
+	if (err)
+		return err;
 	efivar_unregister(entry);
 	return 0;
 }
@@ -698,7 +705,14 @@
 static void efivars_sysfs_exit(void)
 {
 	/* Remove all entries and destroy */
-	__efivar_entry_iter(efivar_sysfs_destroy, &efivar_sysfs_list, NULL, NULL);
+	int err;
+
+	err = __efivar_entry_iter(efivar_sysfs_destroy, &efivar_sysfs_list,
+				  NULL, NULL);
+	if (err) {
+		pr_err("efivars: Failed to destroy sysfs entries\n");
+		return;
+	}
 
 	if (efivars_new_var)
 		sysfs_remove_bin_file(&efivars_kset->kobj, efivars_new_var);