software node: Initialize the return value in software_node_to_swnode()

The software node is searched from a list that may be empty
when the function is called. This makes sure that the
function returns NULL even if the list is empty.

Fixes: 80488a6b1d3c ("software node: Add support for static node descriptors")
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index ee2a405cca9a..1838d72e618a 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -51,7 +51,7 @@ EXPORT_SYMBOL_GPL(is_software_node);
 static struct swnode *
 software_node_to_swnode(const struct software_node *node)
 {
-        struct swnode *swnode;
+        struct swnode *swnode = NULL;
         struct kobject *k;
 
         if (!node)