The parenthesis are in the wrong place so the original code is equivalent to: if (!xen_feature(0x1)) { ... Or: if (!xen_feature(XENFEAT_writable_descriptor_tables)) { ... Which obviously was not intended. Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> --- I sent this last November but it was never merged. diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index ca2b00e..2cfc24d 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -504,7 +504,7 @@ static void privcmd_close(struct vm_area_struct *vma) struct page **pages = vma->vm_private_data; int numpgs = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; - if (!xen_feature(XENFEAT_auto_translated_physmap || !numpgs || !pages)) + if (!xen_feature(XENFEAT_auto_translated_physmap) || !numpgs || !pages) return; xen_unmap_domain_mfn_range(vma, numpgs, pages); -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html