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cmd: fdt: Fix handling of empty properties for fdt get addr and fdt get size

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It is perfectly valid to request an address or size of FDT property
without value, the only special case if requesting of the value of
FDT property without value. Invert the test such, that properties
without value still set the variable from 'fdt get addr/size' to
address of the property or size of the property, where the later
is 0.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Marek Vasut 2023-03-02 04:08:15 +01:00 committed by Simon Glass
parent 56915fa4cc
commit 45d20f55a1
1 changed files with 7 additions and 5 deletions
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12
cmd/fdt.c
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@ -446,15 +446,17 @@ static int do_fdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
} else {
nodep = fdt_getprop(
working_fdt, nodeoffset, prop, &len);
if (len == 0) {
/* no property value */
env_set(var, "");
return 0;
} else if (nodep && len > 0) {
if (nodep && len >= 0) {
if (subcmd[0] == 'v') {
int index = 0;
int ret;
if (len == 0) {
/* no property value */
env_set(var, "");
return 0;
}
if (argc == 7)
index = simple_strtoul(argv[6], NULL, 10);