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authorSakari Ailus <sakari.ailus@linux.intel.com>2017-09-26 11:08:27 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-10-11 21:15:44 +0200
commitc343bc2ce2c627b6cef2b09794a4a5b63419a798 (patch)
tree49636b7f7c4f3e6dc9ff4be45a1516fac57fecd5 /drivers/base/property.c
parentdevice property: Track owner device of device property (diff)
downloadlinux-c343bc2ce2c627b6cef2b09794a4a5b63419a798.tar.xz
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ACPI: properties: Align return codes of __acpi_node_get_property_reference()
acpi_fwnode_get_reference_args(), the function implementing ACPI support for fwnode_property_get_reference_args(), returns directly error codes from __acpi_node_get_property_reference(). The latter uses different error codes than the OF implementation. In particular, the OF implementation uses -ENOENT to indicate that the property is not found, a reference entry is empty and there are no more references. Document and align the error codes for property for fwnode_property_get_reference_args() so that they match with of_parse_phandle_with_args(). Fixes: 3e3119d3088f (device property: Introduce fwnode_property_get_reference_args) Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to '')
-rw-r--r--drivers/base/property.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 21fcc13013a5..7ed99c1b2a8b 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -683,6 +683,10 @@ EXPORT_SYMBOL_GPL(fwnode_property_match_string);
* Caller is responsible to call fwnode_handle_put() on the returned
* args->fwnode pointer.
*
+ * Returns: %0 on success
+ * %-ENOENT when the index is out of bounds, the index has an empty
+ * reference or the property was not found
+ * %-EINVAL on parse error
*/
int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode,
const char *prop, const char *nargs_prop,