safer backend release (#701)

codex-storage · Feb 10, 2024 · 6fab252 · 6fab252
1 parent 64e6a60
commit 6fab252
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/codex/slots/proofs/backends/circomcompat.nim b/codex/slots/proofs/backends/circomcompat.nim
@@ -88,6 +88,10 @@ proc prove*[H](
   var
     backend: ptr CircomCompatCtx
 
+  defer:
+    if backend != nil:
+      backend.addr.releaseCircomCompat()
+
   if initCircomCompat(
     self.backendCfg,
     addr backend) != ERR_OK or backend == nil:
@@ -169,9 +173,6 @@ proc prove*[H](
       if proofPtr != nil:
         proofPtr.addr.releaseProof()
 
-      if backend != nil:
-        backend.addr.releaseCircomCompat()
-
   success proof
 
 proc verify*(