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@@ -68,6 +68,18 @@ int main(int argc, char **argv)
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break;
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}
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+ if (!fdtfile) {
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+ fprintf(stderr, "%s: Missing fdt file\n", *argv);
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+ usage(*argv);
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+ }
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+ if (!nodename) {
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+ fprintf(stderr, "%s: Missing node name\n", *argv);
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+ usage(*argv);
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+ }
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+ if (!propertyname) {
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+ fprintf(stderr, "%s: Missing property name\n", *argv);
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+ usage(*argv);
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+ }
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ffd = mmap_fdt(cmdname, fdtfile, 0, &fit_blob, &fsbuf, false);
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if (ffd < 0) {
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