[libvirt PATCH] qemu_nbdkit: fix possible null dereference

[Pavel Hrdina <phrdina@xxxxxxxxxx>]

Function virGetConnectSecret() can return NULL so we need to check it
since in virSecretGetSecretString() it gets dereferenced.

Reported-by: coverity
Signed-off-by: Pavel Hrdina <phrdina@xxxxxxxxxx>
---
 src/qemu/qemu_nbdkit.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/qemu/qemu_nbdkit.c b/src/qemu/qemu_nbdkit.c
index 66b09cd240..17819ca992 100644
--- a/src/qemu/qemu_nbdkit.c
+++ b/src/qemu/qemu_nbdkit.c
@@ -971,6 +971,9 @@ qemuNbdkitProcessBuildCommandAuth(virStorageAuthDef *authdef,
     }
 
     conn = virGetConnectSecret();
+    if (!conn)
+        return -1;
+
     if (virSecretGetSecretString(conn,
                                  &authdef->seclookupdef,
                                  secrettype,
-- 
2.41.0