Xi: fix XI2 passive grab reply length calculation

If modifiers failed, the reply length was 4 bytes too short.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/Xi/xipassivegrab.c b/Xi/xipassivegrab.c
index 8663d12a1..3319ef913 100644
--- a/Xi/xipassivegrab.c
+++ b/Xi/xipassivegrab.c
@@ -191,7 +191,7 @@ ProcXIPassiveGrabDevice(ClientPtr client)
             info->status = status;
             info->modifiers = *modifiers;
             rep.num_modifiers++;
-            rep.length++;
+            rep.length += bytes_to_int32(sizeof(xXIGrabModifierInfo));
         }
     }
 
@@ -199,7 +199,7 @@ ProcXIPassiveGrabDevice(ClientPtr client)
     if (rep.num_modifiers)
     {
 	client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
-        WriteSwappedDataToClient(client, rep.num_modifiers * 4, (char*)modifiers_failed);
+        WriteSwappedDataToClient(client, rep.length * 4, (char*)modifiers_failed);
     }
     free(modifiers_failed);
     return ret;