On 02/27/17 23:30, Sakari Ailus wrote: > of_property_read_string_array() is documented to return the number of > strings present in a string array property if its target string buffer is > NULL. What is not documented, however, is that is returned if the buffer > is non-NULL. It returns the number of strings read. Document this, as well > as the error codes. > > Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> > --- > include/linux/of.h | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/include/linux/of.h b/include/linux/of.h > index d72f010..5856765 100644 > --- a/include/linux/of.h > +++ b/include/linux/of.h > @@ -952,7 +952,11 @@ static inline int of_property_count_u64_elems(const struct device_node *np, > * Search for a property in a device tree node and retrieve a list of > * terminated string values (pointer to data, not a copy) in that property. > * > - * If @out_strs is NULL, the number of strings in the property is returned. > + * If @out_strs is NULL, the number of strings in the property is returned. If > + * $out_strs is non-NULL, returns the number of strings read. On error, the > + * function returns -EINVAL if the property does not exist, -ENODATA if > + * property does not have a value, and -EILSEQ if the string is not > + * null-terminated within the length of the property data. > */ > static inline int of_property_read_string_array(const struct device_node *np, > const char *propname, const char **out_strs, > Thanks. Reviewed-by: Frank Rowand <frank.rowand@xxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
