From 47ec0e1d8fbba952ec63a0557751b35076d650d1 Mon Sep 17 00:00:00 2001
From: gwenn <gtreguier@gmail.com>
Date: Sat, 7 Nov 2020 11:54:59 +0100
Subject: [PATCH] Fix create_collation

The xDestroy callback is not called if the sqlite3_create_collation_v2() function fails.
---
 src/collation.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/collation.rs b/src/collation.rs
index 5c2d059..2084514 100644
--- a/src/collation.rs
+++ b/src/collation.rs
@@ -96,7 +96,12 @@ impl InnerConnection {
                 Some(free_boxed_value::<C>),
             )
         };
-        self.decode_result(r)
+        let res = self.decode_result(r);
+        // The xDestroy callback is not called if the sqlite3_create_collation_v2() function fails.
+        if res.is_err() {
+            drop(unsafe { Box::from_raw(boxed_f) });
+        }
+        res
     }
 
     fn collation_needed(