ACPI: Use IS_ERR_OR_NULL() instead of non-NULL check in is_acpi_data_node()

The is_acpi_data_node() function takes a struct fwnode_handle pointer as
its argument. The validity of the pointer is first checked. Extend the
check to cover error values as is done by similar is_acpi_node() and
is_acpi_device_node() functions.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 68bc6be447fd6d97c4a90d78ed65aa89dead82be..7569123475b3b31d28e6c97bd4443c407ef93a6c 100644 (file)
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -414,7 +414,7 @@ static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwno
 
 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
 {
-       return fwnode && fwnode->type == FWNODE_ACPI_DATA;
+       return !IS_ERR_OR_NULL(fwnode) && fwnode->type == FWNODE_ACPI_DATA;
 }
 
 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)