Merge remote-tracking branch 'whot/for-keith'

5 files changed, 64 insertions, 41 deletions

diff --git a/dix/devices.c b/dix/devices.c
index 0c62a012d..08875bc3a 100644
--- a/dix/devices.c
+++ b/dix/devices.c
@@ -178,12 +178,9 @@ DeviceSetProperty(DeviceIntPtr dev, Atom property, XIPropertyValuePtr prop,
 
 /* Pair the keyboard to the pointer device. Keyboard events will follow the
  * pointer sprite. Only applicable for master devices.
- * If the client is set, the request to pair comes from some client. In this
- * case, we need to check for access. If the client is NULL, it's from an
- * internal automatic pairing, we must always permit this.
  */
 static int
-PairDevices(ClientPtr client, DeviceIntPtr ptr, DeviceIntPtr kbd)
+PairDevices(DeviceIntPtr ptr, DeviceIntPtr kbd)
 {
     if (!ptr)
         return BadDevice;
@@ -365,13 +362,12 @@ EnableDevice(DeviceIntPtr dev, BOOL sendevent)
                 /* mode doesn't matter */
                 EnterWindow(dev, screenInfo.screens[0]->root, NotifyAncestor);
             }
-            else if ((other = NextFreePointerDevice()) == NULL) {
-                ErrorF("[dix] cannot find pointer to pair with. "
-                       "This is a bug.\n");
-                return FALSE;
+            else {
+                other = NextFreePointerDevice();
+                BUG_RETURN_VAL_MSG(other == NULL, FALSE,
+                                   "[dix] cannot find pointer to pair with.\n");
+                PairDevices(other, dev);
             }
-            else
-                PairDevices(NULL, other, dev);
         }
         else {
             if (dev->coreEvents)
@@ -432,6 +428,9 @@ DisableDevice(DeviceIntPtr dev, BOOL sendevent)
     BOOL enabled;
     int flags[MAXDEVICES] = { 0 };
 
+    if (!dev->enabled)
+        return TRUE;
+
     for (prev = &inputInfo.devices;
          *prev && (*prev != dev); prev = &(*prev)->next);
     if (*prev != dev)
@@ -458,18 +457,19 @@ DisableDevice(DeviceIntPtr dev, BOOL sendevent)
     }
 
     if (IsMaster(dev) && dev->spriteInfo->sprite) {
-        for (other = inputInfo.devices; other; other = other->next) {
-            if (other->spriteInfo->paired == dev) {
-                ErrorF("[dix] cannot disable device, still paired. "
-                       "This is a bug. \n");
-                return FALSE;
-            }
-        }
+        for (other = inputInfo.devices; other; other = other->next)
+            if (other->spriteInfo->paired == dev && !other->spriteInfo->spriteOwner)
+                DisableDevice(other, sendevent);
     }
 
+    if (dev->spriteInfo->paired)
+        dev->spriteInfo->paired = NULL;
+
     (void) (*dev->deviceProc) (dev, DEVICE_OFF);
     dev->enabled = FALSE;
 
+    FreeSprite(dev);
+
     /* now that the device is disabled, we can reset the signal handler's
      * last.slave */
     OsBlockSignals();
@@ -501,6 +501,26 @@ DisableDevice(DeviceIntPtr dev, BOOL sendevent)
     return TRUE;
 }
 
+void
+DisableAllDevices(void)
+{
+    DeviceIntPtr dev, tmp;
+
+    nt_list_for_each_entry_safe(dev, tmp, inputInfo.devices, next) {
+        if (!IsMaster(dev))
+            DisableDevice(dev, FALSE);
+    }
+    /* master keyboards need to be disabled first */
+    nt_list_for_each_entry_safe(dev, tmp, inputInfo.devices, next) {
+        if (dev->enabled && IsMaster(dev) && IsKeyboardDevice(dev))
+            DisableDevice(dev, FALSE);
+    }
+    nt_list_for_each_entry_safe(dev, tmp, inputInfo.devices, next) {
+        if (dev->enabled)
+            DisableDevice(dev, FALSE);
+    }
+}
+
 /**
  * Initialise a new device through the driver and tell all clients about the
  * new device.
@@ -923,12 +943,7 @@ CloseDevice(DeviceIntPtr dev)
         free(classes);
     }
 
-    if (DevHasCursor(dev) && dev->spriteInfo->sprite) {
-        if (dev->spriteInfo->sprite->current)
-            FreeCursor(dev->spriteInfo->sprite->current, None);
-        free(dev->spriteInfo->sprite->spriteTrace);
-        free(dev->spriteInfo->sprite);
-    }
+    FreeSprite(dev);
 
     /* a client may have the device set as client pointer */
     for (j = 0; j < currentMaxClients; j++) {
diff --git a/dix/events.c b/dix/events.c
index 83ae5c965..49894fa26 100644
--- a/dix/events.c
+++ b/dix/events.c
@@ -3192,6 +3192,18 @@ InitializeSprite(DeviceIntPtr pDev, WindowPtr pWin)
 #endif
 }
 
+void FreeSprite(DeviceIntPtr dev)
+{
+    if (DevHasCursor(dev) && dev->spriteInfo->sprite) {
+        if (dev->spriteInfo->sprite->current)
+            FreeCursor(dev->spriteInfo->sprite->current, None);
+        free(dev->spriteInfo->sprite->spriteTrace);
+        free(dev->spriteInfo->sprite);
+    }
+    dev->spriteInfo->sprite = NULL;
+}
+
+
 /**
  * Update the mouse sprite info when the server switches from a pScreen to another.
  * Otherwise, the pScreen of the mouse sprite is never updated when we switch
diff --git a/dix/getevents.c b/dix/getevents.c
index 4fbaa6c94..baa26c4b8 100644
--- a/dix/getevents.c
+++ b/dix/getevents.c
@@ -1821,10 +1821,7 @@ GetTouchEvents(InternalEvent *events, DeviceIntPtr dev, uint32_t ddx_touchid,
 
     if (flags & TOUCH_CLIENT_ID) {      /* A DIX-submitted TouchEnd */
         touchpoint.dix_ti = TouchFindByClientID(dev, ddx_touchid);
-        BUG_WARN(!touchpoint.dix_ti);
-
-        if (!touchpoint.dix_ti)
-            return 0;
+        BUG_RETURN_VAL(!touchpoint.dix_ti, 0);
 
         if (!mask_in ||
             !valuator_mask_isset(mask_in, 0) ||
diff --git a/dix/main.c b/dix/main.c
index 83efa7d7f..e95ca1cc2 100644
--- a/dix/main.c
+++ b/dix/main.c
@@ -104,6 +104,7 @@ Equipment Corporation.
 #include "privates.h"
 #include "registry.h"
 #include "client.h"
+#include "exevents.h"
 #ifdef PANORAMIX
 #include "panoramiXsrv.h"
 #else
@@ -295,6 +296,7 @@ main(int argc, char *argv[], char *envp[])
 #endif
 
         UndisplayDevices();
+        DisableAllDevices();
 
         /* Now free up whatever must be freed */
         if (screenIsSaved == SCREEN_SAVER_ON)
@@ -318,7 +320,9 @@ main(int argc, char *argv[], char *envp[])
 
         for (i = 0; i < screenInfo.numScreens; i++)
             screenInfo.screens[i]->root = NullWindow;
+
         CloseDownDevices();
+
         CloseDownEvents();
 
         for (i = screenInfo.numScreens - 1; i >= 0; i--) {
diff --git a/dix/touch.c b/dix/touch.c
index 401cb981a..aa17faf28 100644
--- a/dix/touch.c
+++ b/dix/touch.c
@@ -103,11 +103,11 @@ TouchResizeQueue(ClientPtr client, pointer closure)
 
         tmp = realloc(dev->last.touches, size * sizeof(*dev->last.touches));
         if (tmp) {
-            int i;
+            int j;
 
             dev->last.touches = tmp;
-            for (i = dev->last.num_touches; i < size; i++)
-                TouchInitDDXTouchPoint(dev, &dev->last.touches[i]);
+            for (j = dev->last.num_touches; j < size; j++)
+                TouchInitDDXTouchPoint(dev, &dev->last.touches[j]);
             dev->last.num_touches = size;
         }
 
@@ -598,8 +598,8 @@ TouchConvertToPointerEvent(const InternalEvent *event,
     int ptrtype;
     int nevents = 0;
 
-    BUG_WARN(!event);
-    BUG_WARN(!motion_event);
+    BUG_RETURN_VAL(!event, 0);
+    BUG_RETURN_VAL(!motion_event, 0);
 
     switch (event->any.type) {
     case ET_TouchUpdate:
@@ -627,7 +627,7 @@ TouchConvertToPointerEvent(const InternalEvent *event,
     motion_event->device_event.flags = XIPointerEmulated;
 
     if (nevents > 1) {
-        BUG_WARN(!button_event);
+        BUG_RETURN_VAL(!button_event, 0);
         *button_event = *event;
         button_event->any.type = ptrtype;
         button_event->device_event.flags = XIPointerEmulated;
@@ -966,10 +966,8 @@ TouchListenerAcceptReject(DeviceIntPtr dev, TouchPointInfoPtr ti, int listener,
     int nev;
     int i;
 
-    BUG_WARN(listener < 0);
-    BUG_WARN(listener >= ti->num_listeners);
-    if (listener < 0 || listener >= ti->num_listeners)
-        return BadMatch;
+    BUG_RETURN_VAL(listener < 0, BadMatch);
+    BUG_RETURN_VAL(listener >= ti->num_listeners, BadMatch);
 
     if (listener > 0) {
         if (mode == XIRejectTouch)
@@ -981,10 +979,7 @@ TouchListenerAcceptReject(DeviceIntPtr dev, TouchPointInfoPtr ti, int listener,
     }
 
     events = InitEventList(GetMaximumEventsNum());
-    if (!events) {
-        BUG_WARN_MSG(TRUE, "Failed to allocate touch ownership events\n");
-        return BadAlloc;
-    }
+    BUG_RETURN_VAL_MSG(!events, BadAlloc, "Failed to allocate touch ownership events\n");
 
     nev = GetTouchOwnershipEvents(events, dev, ti, mode,
                                   ti->listeners[0].listener, 0);