5.4-stable review patch. If anyone has any objections, please let me know.
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From: Sakari Ailus sakari.ailus@linux.intel.com
[ Upstream commit 1eaea4b3604eb9ca7d9a1e73d88fc121bb4061f5 ]
fwnode_get_property_reference_args() 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.
Fixes: b06184acf751 ("software node: Add software_node_get_reference_args()") Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Reviewed-by: Heikki Krogerus heikki.krogerus@linux.intel.com Link: https://lore.kernel.org/r/20231109101010.1329587-3-sakari.ailus@linux.intel.... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/base/swnode.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index 4c3b9813b284..636d52d1a1b8 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -604,6 +604,9 @@ 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;