int mode_spifreq = 0, mode_em100 = 0, mode_locked = 0;
        int mode_unlocked = 0, mode_write = 0, mode_write_descriptor = 0;
        int create = 0;
-       char *region_type_string = NULL, *src_fname = NULL;
-       char *addr_str = NULL;
+       char *region_type_string = NULL, *inject_fname = NULL;
+       char *desc_fname = NULL, *addr_str = NULL;
        int region_type = -1, inputfreq = 0;
        enum spi_frequency spifreq = SPI_FREQUENCY_20MHZ;
        unsigned int addr[WRITE_MAX];
                        break;
                case 'D':
                        mode_write_descriptor = 1;
-                       src_fname = optarg;
+                       desc_fname = optarg;
                        break;
                case 'e':
                        mode_em100 = 1;
                        break;
                case 'i':
                        if (get_two_words(optarg, ®ion_type_string,
-                                         &src_fname)) {
+                                         &inject_fname)) {
                                print_usage(argv[0]);
                                exit(EXIT_FAILURE);
                        }
        }
 
        if (mode_write_descriptor)
-               ret = write_data(image, size, -size, src_fname);
+               ret = write_data(image, size, -size, desc_fname);
 
        if (mode_inject)
-               ret = inject_region(image, size, region_type, src_fname);
+               ret = inject_region(image, size, region_type, inject_fname);
 
        if (mode_write) {
                for (wr_idx = 0; wr_idx < wr_num; wr_idx++) {