From 7e135868374601020920094f135d678c688d0950 Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Thu, 22 Apr 2021 12:30:26 +0200
Subject: [PATCH] cov: check _insert_dev return value

Although we try later to validate device was inserted,
we can validate return value and early-exit.
---
 lib/device/dev-cache.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/device/dev-cache.c b/lib/device/dev-cache.c
index aa93b5758..dddf84e4d 100644
--- a/lib/device/dev-cache.c
+++ b/lib/device/dev-cache.c
@@ -1510,7 +1510,8 @@ struct device *dev_cache_get(struct cmd_context *cmd, const char *name, struct d
 	 * for st_rdev.
 	 */
 	if (!dev) {
-		_insert_dev(name, st.st_rdev);
+		if (!_insert_dev(name, st.st_rdev))
+			return_NULL;
 
 		/* Get the struct dev that was just added. */
 		dev = (struct device *) dm_hash_lookup(_cache.names, name);