software node: Initialize the return value in software_node_find_by_name()

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 if the list is empty.

Fixes: 1666faedb567 ("software node: Add software_node_find_by_name()")
Reported-by: kbuild test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Heikki Krogerus <[email protected]>
Reviewed-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index 1838d72e618af0aac48f4da82d6f94ba8e31d1fa..a1f3f0994f9f9c9e3f3e7582ff37971f74a41984 100644 (file)
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -633,7 +633,7 @@ static const struct fwnode_operations software_node_ops = {
 const struct software_node *
 software_node_find_by_name(const struct software_node *parent, const char *name)
 {
-       struct swnode *swnode;
+       struct swnode *swnode = NULL;
        struct kobject *k;
 
        if (!name)