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fdtdec: correct test on return of fdt_node_offset_by_phandle

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The result of fdt_node_offset_by_phandle is negative for error,
so this patch corrects the check of this result in
fdtdec_parse_phandle_with_args.

This patch allows to have the same behavior with or without OF_LIVE
for the function dev_read_phandle_with_args with cell_name = NULL and
with invalid phandle.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Patrick Delaunay 2020-09-25 09:41:15 +02:00 committed by Simon Glass
parent 89f68302ca
commit cba487c7fc
1 changed files with 1 additions and 1 deletions
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2
lib/fdtdec.c
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@ -746,7 +746,7 @@ int fdtdec_parse_phandle_with_args(const void *blob, int src_node,
if (cells_name || cur_index == index) {
node = fdt_node_offset_by_phandle(blob,
phandle);
if (!node) {
if (node < 0) {
debug("%s: could not find phandle\n",
fdt_get_name(blob, src_node,
NULL));