[PATCH] nvdimm: Call nvdimm_put_key(key) only once in nvdimm_key_revalidate()

[PATCH] nvdimm: Call nvdimm_put_key(key) only once in nvdimm_key_revalidate()

[Markus Elfring]

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 23 Sep 2024 17:05:39 +0200

A nvdimm_put_key(key) call was immediately used after a return code
check for a change_key() call in this function implementation.
Thus call such a function only once instead directly before the check.

This issue was transformed by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/nvdimm/security.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/nvdimm/security.c b/drivers/nvdimm/security.c
index a03e3c45f297..83c30980307c 100644
--- a/drivers/nvdimm/security.c
+++ b/drivers/nvdimm/security.c
@@ -152,12 +152,10 @@ static int nvdimm_key_revalidate(struct nvdimm *nvdimm)
 	 * verify that the key is good.
 	 */
 	rc = nvdimm->sec.ops->change_key(nvdimm, data, data, NVDIMM_USER);
-	if (rc < 0) {
-		nvdimm_put_key(key);
+	nvdimm_put_key(key);
+	if (rc < 0)
 		return rc;
-	}

-	nvdimm_put_key(key);
 	nvdimm->sec.flags = nvdimm_security_flags(nvdimm, NVDIMM_USER);
 	return 0;
 }
--
2.46.1