Add destructors to all the types that need destructing

1 files changed, 8 insertions, 0 deletions

diff --git a/pkey.rs b/pkey.rs
index 0c6e807a..2da84458 100644
--- a/pkey.rs
+++ b/pkey.rs
@@ -336,6 +336,14 @@ impl PKey {
     }
 }
 
+impl Drop for PKey {
+    fn drop(&self) {
+        unsafe {
+            libcrypto::EVP_PKEY_free(self.evp);
+        }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;