From: Peter Dinda <pdinda@northwestern.edu>
Date: Fri, 17 Aug 2012 21:01:47 +0000 (-0500)
Subject: Avoid corruption when freeing a guest fails
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=commitdiff_plain;h=3c1a150e4bdf5bd3a8b572dd2021ba95cbb35f1a;p=palacios.releases.git

Avoid corruption when freeing a guest fails
---

diff --git a/linux_module/main.c b/linux_module/main.c
index efaa20e..fdab7b3 100644
--- a/linux_module/main.c
+++ b/linux_module/main.c
@@ -150,7 +150,11 @@ out_err:
 
 	    INFO("Freeing VM (%s) (%p)\n", guest->name, guest);
 
-	    free_palacios_vm(guest);
+	    if (free_palacios_vm(guest)<0) { 
+		ERROR("Cannot free guest at index %ld\n",vm_idx);
+		return -1;
+	    }
+
 	    guest_map[vm_idx] = NULL;
 	    break;
 	}
diff --git a/linux_module/vm.c b/linux_module/vm.c
index 624cc39..5584b38 100644
--- a/linux_module/vm.c
+++ b/linux_module/vm.c
@@ -434,7 +434,9 @@ out_err:
 
 int free_palacios_vm(struct v3_guest * guest) {
 
-    v3_free_vm(guest->v3_ctx);
+    if (v3_free_vm(guest->v3_ctx)<0) { 
+	return -1;
+    }
 
     device_destroy(v3_class, guest->vm_dev);