nvme-auth: fix smatch warning complaints

When initializing auth context, there may be no secrets passed
by the user. Make return code explicit when returning successfully.

smatch warnings:
drivers/nvme/host/auth.c:950 nvme_auth_init_ctrl() warn: missing error code? 'ret'

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/nvme/host/auth.c b/drivers/nvme/host/auth.c
index bb0abbe4491cdc1283ce63f2ffed398bc2f069cf..4424f53a8a0a3d1a87b573b43c7d580e42fe1db3 100644 (file)
--- a/drivers/nvme/host/auth.c
+++ b/drivers/nvme/host/auth.c
@@ -953,7 +953,7 @@ int nvme_auth_init_ctrl(struct nvme_ctrl *ctrl)
                goto err_free_dhchap_secret;
 
        if (!ctrl->opts->dhchap_secret && !ctrl->opts->dhchap_ctrl_secret)
-               return ret;
+               return 0;
 
        ctrl->dhchap_ctxs = kvcalloc(ctrl_max_dhchaps(ctrl),
                                sizeof(*chap), GFP_KERNEL);