[U-Boot] [PATCH 8/8] tpm: Fix comparison of unsigned expression warning

[Tom Rini]

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 at konsulko.com>
---
 lib/tpm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/tpm.c b/lib/tpm.c
index cd7f88f2204e..fb520e3d733c 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;
-- 
1.9.1