https://github.com/p11-glue/p11-kit/commit/cdc4720d29466e717aa694a85a7aee86ebb94172

From cdc4720d29466e717aa694a85a7aee86ebb94172 Mon Sep 17 00:00:00 2001
From: Erdem Meydanli <meydanli@amazon.com>
Date: Thu, 26 Oct 2023 15:18:24 +0000
Subject: [PATCH] fix: improper comparison

Compare the return value of the readpassphrase function to NULL.

Signed-off-by: Erdem Meydanli <meydanli@amazon.com>
--- a/p11-kit/tty.c
+++ b/p11-kit/tty.c
@@ -66,7 +66,7 @@ p11_pin_tty_callback (const char *pin_source,
 	if (asprintf (&prompt, "%s: ", pin_description) < 0)
 		return NULL;
 
-	if (readpassphrase (prompt, buf, sizeof(buf), 0) < 0)
+	if (readpassphrase (prompt, buf, sizeof(buf), 0) == NULL)
 		goto cleanup;
 
 	pin = p11_kit_pin_new_for_string (buf);