fix string read

Author: DHowett

util/comm-mec_lpc.c

@@ -181,25 +181,25 @@ static int ec_command_lpc_mec_3(int command, int version, const void *outdata,
 
 static int ec_readmem_lpc_mec(int offset, int bytes, void *dest)
 {
-	int xfer_offset = MEC_EC_MEMMAP_START + offset;
+	int i = offset;
 	int cnt = 0;
 	char* s = dest;
 
 	if (offset >= EC_MEMMAP_SIZE - bytes)
 		return -1;
 
 	if (bytes) {
-		ec_mec_xfer(EC_MEC_READ, xfer_offset, dest, bytes);
+		ec_mec_xfer(EC_MEC_READ, MEC_EC_MEMMAP_START + i, dest, bytes);
 		cnt = bytes;
 	} else {
 		/* Somewhat brute-force to set up a bunch of
 		 * individual transfers, but clearer than copying the xfer code
 		 * to add a stop condition.
 		 */
-		do {
-			ec_mec_xfer(EC_MEC_READ, xfer_offset++, s++, 1);
+		for(; i < EC_MEMMAP_SIZE; ++i, ++s) {
+			ec_mec_xfer(EC_MEC_READ, MEC_EC_MEMMAP_START + i, s, 1);
 			cnt++;
-		} while(*s != '\0' && xfer_offset < EC_MEMMAP_SIZE);
+		}
 	}
 	return cnt;
 }