KVM: VMX: free vpid when fail to create vcpu

[safe/jmp/linux-2.6] / mm / backing-dev.c

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 0e8ca03..f13e067 100644 (file)
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -227,6 +227,9 @@ static struct device_attribute bdi_dev_attrs[] = {
 static __init int bdi_class_init(void)
 {
        bdi_class = class_create(THIS_MODULE, "bdi");
+       if (IS_ERR(bdi_class))
+               return PTR_ERR(bdi_class);
+
        bdi_class->dev_attrs = bdi_dev_attrs;
        bdi_debug_init();
        return 0;