From 667d6856973c725331f70eb9f36fee8897123316 Mon Sep 17 00:00:00 2001
From: Tom Rini <trini@konsulko.com>
Date: Wed, 10 May 2017 15:20:18 -0400
Subject: tpm: Fix comparison of unsigned expression warning

The function tpm_xfer returns int so make 'err' be int rather than
uint32_t so that we can catch an error condition.  Reported by
clang-3.8.

Signed-off-by: Tom Rini <trini@konsulko.com>

diff --git a/lib/tpm.c b/lib/tpm.c
index cd7f88f..fb520e3 100644
--- a/lib/tpm.c
+++ b/lib/tpm.c
@@ -230,10 +230,9 @@ static uint32_t tpm_sendrecv_command(const void *command,
 		void *response, size_t *size_ptr)
 {
 	struct udevice *dev;
-	int ret;
+	int err, ret;
 	uint8_t response_buffer[COMMAND_BUFFER_SIZE];
 	size_t response_length;
-	uint32_t err;
 
 	if (response) {
 		response_length = *size_ptr;
-- 
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