device property: Avoid potential dereferences of invalid pointers

[cascardo/linux.git] / include / acpi / acpi_bus.h

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 14362a8..3a93250 100644 (file)
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -394,13 +394,13 @@ struct acpi_data_node {
 
 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
 {
-       return fwnode && (fwnode->type == FWNODE_ACPI
+       return !IS_ERR_OR_NULL(fwnode) && (fwnode->type == FWNODE_ACPI
                || fwnode->type == FWNODE_ACPI_DATA);
 }
 
 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
 {
-       return fwnode && fwnode->type == FWNODE_ACPI;
+       return !IS_ERR_OR_NULL(fwnode) && fwnode->type == FWNODE_ACPI;
 }
 
 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)