use skip_atoi instead of atoi
atoi requires a stdlib. skip_atoi is much simpler
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@ -251,7 +251,7 @@ int do_setserial(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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if (argc != 2)
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return CMD_RET_FAILURE;
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serialnumber = atoi(argv[1]);
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serialnumber = skip_atoi(argv[1]);
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if (serialnumber <= 0) {
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printf("Invalid serialnumber. <= 0!\n");
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return CMD_RET_FAILURE;
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