XkbSetNamedIndicator should ignore SD's without LED's

When ProcXkbSetNamedIndicator is called on a core device, and we
walk the slaves to set the LED's on each of them, ignore any slaves
that do not have either a KbdFeedbackCtrl or LedCtrl structure.

(This is much more critical in xserver-1.5-branch, where we walk
 *all* devices, not just the slaves of the specified master, and
 thus return failure when setting an LED on the Core Keyboard and
 hit a xf86-input-mouse device with no LED's to set.)

Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 557dbadf3be273255e8fdb12d9321f4e88bf2b65)

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/xkb/xkb.c b/xkb/xkb.c
index 7c1edea1a..15a0f432c 100644
--- a/xkb/xkb.c
+++ b/xkb/xkb.c
@@ -3438,6 +3438,7 @@ ProcXkbSetNamedIndicator(ClientPtr client)
         for (other = inputInfo.devices; other; other = other->next)
         {
             if ((other != dev) && !other->isMaster && (other->u.master == dev) &&
+                (other->kbdfeed || other->leds) &&
                 (XaceHook(XACE_DEVICE_ACCESS, client, other, DixSetAttrAccess) == Success))
             {
                 rc = _XkbCreateIndicatorMap(other, stuff->indicator,
@@ -3461,6 +3462,7 @@ ProcXkbSetNamedIndicator(ClientPtr client)
         for (other = inputInfo.devices; other; other = other->next)
         {
             if ((other != dev) && !other->isMaster && (other->u.master == dev) &&
+                (other->kbdfeed || other->leds) &&
                 (XaceHook(XACE_DEVICE_ACCESS, client, other, DixSetAttrAccess) == Success))
             {
                 _XkbSetNamedIndicator(client, other, stuff);