0001-device-property-always-check-for-fwnode-type.patch

From e3f9e299bf94298ddd8beb63c0786a4d7766dc86 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 30 Nov 2015 17:11:29 +0200
Subject: [PATCH 01/16] device property: always check for fwnode type

Currently the property accessors unconditionally fall back to built-in property
set as a last resort. Make this strict and return an error in case the type of
fwnode is unknown.

This is actually a follow up to the commit 4fa7508e9f1c (device property:
Return -ENXIO if there is no suitable FW interface).

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/base/property.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/base/property.c b/drivers/base/property.c
index 1325ff2..09e488d 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -135,8 +135,9 @@ bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname)
 		return of_property_read_bool(to_of_node(fwnode), propname);
 	else if (is_acpi_node(fwnode))
 		return !acpi_node_prop_get(fwnode, propname, NULL);
-
-	return !!pset_prop_get(to_pset(fwnode), propname);
+	else if (is_pset(fwnode))
+		return !!pset_prop_get(to_pset(fwnode), propname);
+	return false;
 }
 EXPORT_SYMBOL_GPL(fwnode_property_present);
 
@@ -494,9 +495,10 @@ int fwnode_property_read_string(struct fwnode_handle *fwnode,
 	else if (is_acpi_node(fwnode))
 		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
 					   val, 1);
-
-	return pset_prop_read_array(to_pset(fwnode), propname,
-				    DEV_PROP_STRING, val, 1);
+	else if (is_pset(fwnode))
+		return pset_prop_read_array(to_pset(fwnode), propname,
+					    DEV_PROP_STRING, val, 1);
+	return -ENXIO;
 }
 EXPORT_SYMBOL_GPL(fwnode_property_read_string);
 
-- 
2.5.0