[PATCH libXi v2] Fix duplicate sizeof in copy_classes

[Peter Hutterer]

sizeof(bla * sizeof()) is'nt right.

Plus add some () to the next_block call too to emphasise that *nclasses is
the multiplicator.

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
Reviewed-by: Jeremy Huddleston <jeremyhu at apple.com>
---
Good catch, I must have read over this 50 times. I guess Jeremy's rev-by
still stands so I left the tag in, I suspect he just read over this as well.

 src/XExtInt.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/XExtInt.c b/src/XExtInt.c
index d74a8d4..82f5bf3 100644
--- a/src/XExtInt.c
+++ b/src/XExtInt.c
@@ -1481,8 +1481,8 @@ copy_classes(XIDeviceInfo* to, xXIAnyInfo* from, int *nclasses)
 
     ptr_wire = (char*)from;
     ptr_lib = to->classes;
-    to->classes = next_block(&ptr_lib, *nclasses * sizeof(XIAnyClassInfo*));
-    memset(to->classes, 0, sizeof(*nclasses * sizeof(XIAnyClassInfo*)));
+    to->classes = next_block(&ptr_lib, (*nclasses) * sizeof(XIAnyClassInfo*));
+    memset(to->classes, 0, (*nclasses) * sizeof(XIAnyClassInfo*));
     len = 0; /* count wire length */
 
     for (i = 0; i < *nclasses; i++)
-- 
1.7.7.1