From b1efcc470eb30073f3dedb9a88cffa71ea75d853 Mon Sep 17 00:00:00 2001
From: Damien Le Moal <dlemoal@kernel.org>
Date: Fri, 11 Apr 2025 10:00:15 +0900
Subject: [PATCH] nvmet: auth: use NULL to clear a pointer in
 nvmet_auth_sq_free()

When compiling with C=1, the following sparse warning is generated:

auth.c:243:23: warning: Using plain integer as NULL pointer

Avoid this warning by using NULL to instead of 0 to set the sq tls_key
pointer.

Fixes: fa2e0f8bbc68 ("nvmet-tcp: support secure channel concatenation")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/nvme/target/auth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/target/auth.c b/drivers/nvme/target/auth.c
index 0b0645ac5df4..cef8d77f477b 100644
--- a/drivers/nvme/target/auth.c
+++ b/drivers/nvme/target/auth.c
@@ -240,7 +240,7 @@ void nvmet_auth_sq_free(struct nvmet_sq *sq)
 {
 	cancel_delayed_work(&sq->auth_expired_work);
 #ifdef CONFIG_NVME_TARGET_TCP_TLS
-	sq->tls_key = 0;
+	sq->tls_key = NULL;
 #endif
 	kfree(sq->dhchap_c1);
 	sq->dhchap_c1 = NULL;
-- 
2.49.0