[PATCH 20/35] libfdt: libfdt_wip: Fix comparison warning

[Sebastian Huber]

From: Andre Przywara <andre.przywara at arm.com>

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 at arm.com>
Message-Id: <20201001164630.4980-5-andre.przywara at arm.com>
Signed-off-by: David Gibson <david at gibson.dropbear.id.au>
---
 cpukit/dtc/libfdt/fdt_wip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cpukit/dtc/libfdt/fdt_wip.c b/cpukit/dtc/libfdt/fdt_wip.c
index f64139e0b3..c2d7566a67 100644
--- a/cpukit/dtc/libfdt/fdt_wip.c
+++ b/cpukit/dtc/libfdt/fdt_wip.c
@@ -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);
-- 
2.31.1