[libvirt] [PATCH] storage: Do not break the whole vol lookup process in the middle

[Osier Yang]

* src/storage/storage_driver.c: As virStorageVolLookupByPath lookups
all the pool objs of the drivers, breaking when failing on getting
the stable path of the pool will just breaks the lookup process, it
can cause the API fails even if the vol exists indeed. It won't get
any benifit. This patch is to fix it.
---
 src/storage/storage_driver.c |   14 ++++++--------
 1 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c
index c05b74e..8a3b5be 100644
--- a/src/storage/storage_driver.c
+++ b/src/storage/storage_driver.c
@@ -1247,14 +1247,13 @@ storageVolumeLookupByPath(virConnectPtr conn,
 
             stable_path = virStorageBackendStablePath(driver->pools.objs[i],
                                                       cleanpath);
-            /*
-             * virStorageBackendStablePath already does
-             * virStorageReportError if it fails; we just need to keep
-             * propagating the return code
-             */
             if (stable_path == NULL) {
-                virStoragePoolObjUnlock(driver->pools.objs[i]);
-                goto cleanup;
+                /* Don't break the whole lookup process if fails on
+                 * getting the stabe path for some of the pool.
+                 */
+                VIR_WARN("Failed to get stable path for pool '%s'",
+                         driver->pools.objs[i]->def->name);
+                continue;
             }
 
             vol = virStorageVolDefFindByPath(driver->pools.objs[i],
@@ -1274,7 +1273,6 @@ storageVolumeLookupByPath(virConnectPtr conn,
         virStorageReportError(VIR_ERR_NO_STORAGE_VOL,
                               "%s", _("no storage vol with matching path"));
 
-cleanup:
     VIR_FREE(cleanpath);
     storageDriverUnlock(driver);
     return ret;
-- 
1.7.6