From cfcfbd4360cff1d7a0fb1332a6013cdc6270b381 Mon Sep 17 00:00:00 2001
From: ndrpnt <22328659+ndrpnt@users.noreply.github.com>
Date: Thu, 21 Apr 2022 11:10:10 +0200
Subject: [PATCH] Make Free() return Go error instead of C error code

---
 clamav.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/clamav.go b/clamav.go
index 98d440d..c08b2fa 100644
--- a/clamav.go
+++ b/clamav.go
@@ -176,8 +176,12 @@ func (c *Clamav) EngineGetNum(field EngineField) (uint64, error) {
 
 // Free the memory allocated to clamav instance, Free should be called
 // when the engine is no longer in use.
-func (c *Clamav) Free() int {
-	return int(C.cl_engine_free((*C.struct_cl_engine)(c.engine)))
+func (c *Clamav) Free() error {
+	ret := ErrorCode(C.cl_engine_free((*C.struct_cl_engine)(c.engine)))
+	if ret == CL_SUCCESS {
+		return nil
+	}
+	return Strerr(ret)
 }
 
 // ScanMapCB scans custom data