TPM cleanup

firmware/lib/tpm_lite/tlcl.c

Index: firmware/lib/tpm_lite/tlcl.c
diff --git a/firmware/lib/tpm_lite/tlcl.c b/firmware/lib/tpm_lite/tlcl.c
index 43790047460760b6f07ee15b6a216a880d3adae9..2d79820d5c4f744a3591b222600b83b8e2da5a84 100644
--- a/firmware/lib/tpm_lite/tlcl.c
+++ b/firmware/lib/tpm_lite/tlcl.c
@@ -254,8 +254,9 @@ uint32_t TlclSetGlobalLock(void) {
 
 uint32_t TlclExtend(int pcr_num, uint8_t* in_digest, uint8_t* out_digest) {
   struct s_tpm_extend_cmd cmd;
-  Memcpy(&cmd, &tpm_extend_cmd, sizeof(cmd));
   uint8_t response[kTpmResponseHeaderLength + kPcrDigestLength];
+
+  Memcpy(&cmd, &tpm_extend_cmd, sizeof(cmd));
   ToTpmUint32(cmd.buffer + tpm_extend_cmd.pcrNum, pcr_num);
   Memcpy(cmd.buffer + cmd.inDigest, in_digest, kPcrDigestLength);
   TlclSendReceive(cmd.buffer, response, sizeof(response));