x86: fix number of array elements calculation in

XEN_DOMCTL_getpageframeinfo3 handler

Signed-off-by: Jan Beulich <jbeulich@novell.com>

diff --git a/xen/arch/x86/domctl.c b/xen/arch/x86/domctl.c
index e74e9786f7960a718efbf8991a687aa189ae0fd2..2fc24c9fd748803c58ce52d7e61d589235bf108f 100644 (file)
--- a/xen/arch/x86/domctl.c
+++ b/xen/arch/x86/domctl.c
@@ -194,7 +194,8 @@ long arch_do_domctl(
 
             for ( n = ret = 0; n < num; )
             {
-                unsigned int k = min_t(unsigned int, num - n, PAGE_SIZE / 4);
+                unsigned int k = min_t(unsigned int, num - n,
+                                       PAGE_SIZE / sizeof(*arr));
 
                 if ( copy_from_guest_offset(arr,
                                             domctl->u.getpageframeinfo3.array,