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-rw-r--r--drivers/acpi/property.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 07d76fb740b6..a6ead5204046 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -881,6 +881,7 @@ static struct fwnode_handle *acpi_parse_string_ref(const struct fwnode_handle *f
* @index: Index of the reference to return
* @num_args: Maximum number of arguments after each reference
* @args: Location to store the returned reference with optional arguments
+ * (may be NULL)
*
* Find property with @name, verifify that it is a package containing at least
* one object reference and if so, store the ACPI device object pointer to the
@@ -938,6 +939,9 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
if (!device)
return -EINVAL;
+ if (!args)
+ return 0;
+
args->fwnode = acpi_fwnode_handle(device);
args->nargs = 0;