[Intel-wired-lan] [PATCH iwl-next v7 01/15] devlink: add value check to devlink_info_version_put()

[Jedrzej Jagielski]

Prevent from proceeding if there's nothing to print.

Suggested-by: Przemek Kitszel <przemyslaw.kits...@intel.com>
Reviewed-by: Jiri Pirko <j...@nvidia.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.pura...@broadcom.com>
Tested-by: Bharath R <bharat...@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagiel...@intel.com>
---
 net/devlink/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/devlink/dev.c b/net/devlink/dev.c
index d6e3db300acb..02602704bdea 100644
--- a/net/devlink/dev.c
+++ b/net/devlink/dev.c
@@ -775,7 +775,7 @@ static int devlink_info_version_put(struct devlink_info_req 
*req, int attr,
                req->version_cb(version_name, version_type,
                                req->version_cb_priv);
 
-       if (!req->msg)
+       if (!req->msg || !*version_value)
                return 0;
 
        nest = nla_nest_start_noflag(req->msg, attr);
-- 
2.31.1