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 @@
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;