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libfdt: Remove superfluous NUL character from overlay symbols

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The symbol path already ends with a NUL character (something which is
actually checked by the code) and this NUL is included in
rel_path_len, so there is no need to add a second one.

This change fixes incorrect display in "fdt list /__symbols" after
applying an overlay with symbols.

Signed-off-by: Marcus Comstedt <marcus@mc.pp.se>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Marcus Comstedt 2020-05-22 18:41:36 +02:00 committed by Simon Glass
parent 2f8f5e2353
commit 42a768c689
1 changed files with 2 additions and 3 deletions
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5
scripts/dtc/libfdt/fdt_overlay.c
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@ -757,7 +757,7 @@ static int overlay_symbol_update(void *fdt, void *fdto)
&& (memcmp(s, "/__overlay__", len - 1) == 0)) {
/* /<fragment-name>/__overlay__ */
rel_path = "";
rel_path_len = 0;
rel_path_len = 1; /* Include NUL character */
} else {
/* Symbol refers to something that won't end
* up in the target tree */
@ -794,7 +794,7 @@ static int overlay_symbol_update(void *fdt, void *fdto)
}
ret = fdt_setprop_placeholder(fdt, root_sym, name,
len + (len > 1) + rel_path_len + 1, &p);
len + (len > 1) + rel_path_len, &p);
if (ret < 0)
return ret;
@ -820,7 +820,6 @@ static int overlay_symbol_update(void *fdt, void *fdto)
buf[len] = '/';
memcpy(buf + len + 1, rel_path, rel_path_len);
buf[len + 1 + rel_path_len] = '\0';
}
return 0;