diff options
| -rw-r--r-- | drivers/of/property.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/of/property.c b/drivers/of/property.c index b276d1de3222..72cf12907de0 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1172,6 +1172,14 @@ of_fwnode_get_reference_args(const struct fwnode_handle *fwnode, unsigned int i; int ret; + /* + * This function should return -ENOENT for out of bound indexes, + * but the OF API uses signed indexes and consider negative indexes + * as invalid. Catch them here to correctly implement the fwnode API. + */ + if ((int)index < 0) + return -ENOENT; + if (nargs_prop) ret = of_parse_phandle_with_args(to_of_node(fwnode), prop, nargs_prop, index, &of_args); |