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@xxxxxxxxxxxxxxx>
---
include/acpi/acpi_bus.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 68bc6be..7569123 100644
--- 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)
--
2.7.4
--
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