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[2/3] software node: Let args be NULL in software_node_get_reference_args

Message ID 20231101090737.1148303-3-sakari.ailus@linux.intel.com
State Superseded
Headers show
Series Make fwnode_property_get_reference_args accept NULL args | expand

Commit Message

Sakari Ailus Nov. 1, 2023, 9:07 a.m. UTC 
fwnode_get_property_reference() may not be called with args argument NULL
and while OF already supports this. Add the missing NULL check.

The purpose is to be able to count the references.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/base/swnode.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index 1886995a0b3a..079bd14bdedc 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -541,6 +541,9 @@  software_node_get_reference_args(const struct fwnode_handle *fwnode,
 	if (nargs > NR_FWNODE_REFERENCE_ARGS)
 		return -EINVAL;
 
+	if (!args)
+		return 0;
+
 	args->fwnode = software_node_get(refnode);
 	args->nargs = nargs;