On Monday, March 06, 2017 03:26:31 PM Sakari Ailus wrote:
> of_property_read_string_array() returns number of strings read if the
> target array of pointers is non-NULL. fwnode_property_read_string_array()
> is documented to return 0 in that case. Fix this.
Well, if we want people to use fwnode_property_read_string_array() instead of
of_property_read_string_array(), it should better behave analogously, shouldn't it?
> Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
> ---
> drivers/base/property.c | 24 ++++++++++++++++++------
> 1 file changed, 18 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/base/property.c b/drivers/base/property.c
> index 9224541a..e67ec24 100644
> --- a/drivers/base/property.c
> +++ b/drivers/base/property.c
> @@ -544,12 +544,24 @@ static int __fwnode_property_read_string_array(struct fwnode_handle *fwnode,
> const char *propname,
> const char **val, size_t nval)
> {
> - if (is_of_node(fwnode))
> - return val ?
> - of_property_read_string_array(to_of_node(fwnode),
> - propname, val, nval) :
> - of_property_count_strings(to_of_node(fwnode), propname);
> - else if (is_acpi_node(fwnode))
> + if (is_of_node(fwnode)) {
> + int rval;
> +
> + if (!val)
> + return of_property_count_strings(to_of_node(fwnode),
> + propname);
> +
> + rval = of_property_read_string_array(to_of_node(fwnode),
> + propname, val, nval);
> +
> + if (rval < 0)
> + return rval;
> +
> + if (rval == nval)
> + return 0;
> +
> + return -EOVERFLOW;
> + } else if (is_acpi_node(fwnode))
> return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
> val, nval);
> else if (is_pset_node(fwnode)) {
>
Thanks,
Rafael
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