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| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2023-11-09 13:10:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-07 05:35:26 +0300 |
| commit | 1eaea4b3604eb9ca7d9a1e73d88fc121bb4061f5 (patch) | |
| tree | d92f3de93b1a28618e0fc2dabd5e9d295f96da89 | |
| parent | bef52aa0f3de1b7d8c258c13b16e577361dabf3a (diff) | |
| download | linux-1eaea4b3604eb9ca7d9a1e73d88fc121bb4061f5.tar.xz | |
software node: Let args be NULL in software_node_get_reference_args
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.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/base/swnode.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index f7c4317b2ccf..36512fb75a20 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; |