Check psa_destroy_key() return in ecdsa_verify_wrap()

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/library/pk_wrap.c b/library/pk_wrap.c
index dd8d013..a6b96d3 100644
--- a/library/pk_wrap.c
+++ b/library/pk_wrap.c
@@ -796,7 +796,10 @@
     ret = 0;
 
 cleanup:
-    psa_destroy_key( key_id );
+    status = psa_destroy_key( key_id );
+    if( ret == 0 && status != PSA_SUCCESS )
+        ret = mbedtls_psa_err_translate_pk( status );
+
     return( ret );
 }
 #else /* MBEDTLS_USE_PSA_CRYPTO */