From 30e27d2f8b8fbe3031c0e2863a22c77b577019a0 Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Tue, 21 Sep 2021 18:46:52 +0200
Subject: [PATCH] cov: sanitize function environment

Coverity can see that function is either used with 'dev' or 'def'.
---
 tools/pvck.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/pvck.c b/tools/pvck.c
index 0d1bc1b17..b96b1c784 100644
--- a/tools/pvck.c
+++ b/tools/pvck.c
@@ -379,6 +379,9 @@ static bool _read_bytes(struct device *dev, struct devicefile *def, uint64_t sta
 	if (dev)
 		return dev_read_bytes(dev, start, len, data);
 
+	if (!def)
+		return false;
+
 	off = lseek(def->fd, start, SEEK_SET);
 	if (off != start)
 		return false;