[libvirt] [PATCH 6/6] util: storagefile: Don't pursue backing chain of NULL image

When virStorageFileGetMetadata is called with NULL path argument, the invalid pointer boils down through the recursive worker and is caught by virHashAddEntry which is thankfully resistant to NULL arguments. As it doesn't make sense to pursue backing chains of NULL volumes, exit earlier. This was noticed in the virt-aahelper-test with a slightly modified codebase. --- src/util/virstoragefile.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c index c7384d1..8370d23 100644 --- a/src/util/virstoragefile.c +++ b/src/util/virstoragefile.c @@ -1118,7 +1118,7 @@ virStorageFileGetMetadata(const char *path, int format, virHashTablePtr cycle = virHashCreate(5, NULL); virStorageFileMetadataPtr ret; - if (!cycle) + if (!cycle || !path) return NULL; if (format <= VIR_STORAGE_FILE_NONE) -- 1.9.1