virGetStorageVol: Don't ignore NULL pool name

The function takes pool name as argument. However,
it is not acceptable for it to be NULL. Hence, we
should check it and report error in case it is.

diff --git a/src/datatypes.c b/src/datatypes.c
index f815b6c861c76ce906cdf09a0b1cb4b01e11de05..884eb3e95482a1fbfe78b30cfc8e2f7752ee10b9 100644 (file)
--- a/src/datatypes.c
+++ b/src/datatypes.c
@@ -520,6 +520,7 @@ virGetStorageVol(virConnectPtr conn, const char *pool, const char *name,
         virLibConnError(VIR_ERR_INVALID_CONN, "%s", _("no connection"));
         return NULL;
     }
+    virCheckNonNullArgReturn(pool, NULL);
     virCheckNonNullArgReturn(name, NULL);
     virCheckNonNullArgReturn(key, NULL);