1 files changed, 2 insertions, 2 deletions

diff --git a/net/netfilter/xt_esp.c b/net/netfilter/xt_esp.c
index 9f5da979567..143bfdc8e38 100644
--- a/net/netfilter/xt_esp.c
+++ b/net/netfilter/xt_esp.c
@@ -66,10 +66,10 @@ static int esp_mt_check(const struct xt_mtchk_param *par)
 
         if (espinfo->invflags & ~XT_ESP_INV_MASK) {
                 pr_debug("unknown flags %X\n", espinfo->invflags);
-                return false;
+                return -EINVAL;
         }
 
-        return true;
+        return 0;
 }
 
 static struct xt_match esp_mt_reg[] __read_mostly = {