Index: /trunk/src/VBox/Devices/Storage/ATAController.cpp
===================================================================
--- /trunk/src/VBox/Devices/Storage/ATAController.cpp	(revision 40998)
+++ /trunk/src/VBox/Devices/Storage/ATAController.cpp	(revision 40999)
@@ -3027,8 +3027,8 @@
 static bool ataTrimSS(AHCIATADevState *s)
 {
-    int rc;
+    int rc = VERR_GENERAL_FAILURE;
     uint32_t cRangesMax;
     uint64_t *pu64Range = (uint64_t *)s->CTX_SUFF(pbIOBuffer);
-    bool fRedo;
+    bool fRedo = false;
 
     cRangesMax = s->cbElementaryTransfer / sizeof(uint64_t);