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libfdt: libfdt_wip: Fix comparison warning

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With -Wsign-compare, compilers warn about a mismatching signedness
in a comparison in fdt_setprop_inplace_namelen_partial().

fdt_getprop_namelen() will only return negative error values in "proplen"
if the return value is NULL. So we can rely on "proplen" being positive
in our case and can safely cast it to an unsigned type.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Message-Id: <20201001164630.4980-5-andre.przywara@arm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Andre Przywara 2020-10-01 17:46:28 +01:00 committed by David Gibson
parent fb1f65f158
commit 82525f41d5
1 changed files with 1 additions and 1 deletions
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libfdt/fdt_wip.c
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@ -23,7 +23,7 @@ int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
if (!propval)
return proplen;
if (proplen < (len + idx))
if ((unsigned)proplen < (len + idx))
return -FDT_ERR_NOSPACE;
memcpy((char *)propval + idx, val, len);