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[v2,01/16] device property: always check for fwnode type

Message ID 1448896304-87928-2-git-send-email-andriy.shevchenko@linux.intel.com
State Not Applicable
Headers show

Commit Message

Andy Shevchenko Nov. 30, 2015, 3:11 p.m. UTC 
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>
---
 drivers/base/property.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)
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Patch

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);