[libvirt] [PATCH] storage_driver: Don't crash in storagePoolCreateXML

[Michal Privoznik]

In my recent patches I've introduced
virStoragePoolObjIsStarting() which is then used to protect
storage pool definition when the pool object is locked and
unlocked during long running jobs. Well, my patches did not
anticipate that @obj can be NULL under 'cleanup' label in
storagePoolCreateXML() (for instance when parsing XML fails).
This imperfection is causing libvirtd to crash then.

Fixes: 13284a6b83 storage_driver: Protect pool def during startup and build

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/storage/storage_driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c
index cd9f14a2c0..30940b5dcf 100644
--- a/src/storage/storage_driver.c
+++ b/src/storage/storage_driver.c
@@ -808,7 +808,7 @@ storagePoolCreateXML(virConnectPtr conn,
     pool = virGetStoragePool(conn, def->name, def->uuid, NULL, NULL);
 
  cleanup:
-    if (virStoragePoolObjIsStarting(obj)) {
+    if (obj && virStoragePoolObjIsStarting(obj)) {
         if (!virStoragePoolObjIsActive(obj))
             virStoragePoolUpdateInactive(obj);
         virStoragePoolObjSetStarting(obj, false);
-- 
2.21.0