Give ENGINE_free a return value.
This simplifies building against cryptography.io, which expects
ENGINE_free to return something.
Change-Id: Id1590abab7f47dae6b3a9d593fa7b0fe371c9912
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/35644
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/include/openssl/engine.h b/include/openssl/engine.h
index 9d45952..ce60de4 100644
--- a/include/openssl/engine.h
+++ b/include/openssl/engine.h
@@ -40,8 +40,8 @@
OPENSSL_EXPORT ENGINE *ENGINE_new(void);
// ENGINE_free decrements the reference counts for all methods linked from
-// |engine| and frees |engine| itself.
-OPENSSL_EXPORT void ENGINE_free(ENGINE *engine);
+// |engine| and frees |engine| itself. It returns one.
+OPENSSL_EXPORT int ENGINE_free(ENGINE *engine);
// Method accessors.
