]> err.no Git - linux-2.6/commitdiff
drm: fix crash with fops lock and fixup sarea/page size locking
authorDave Airlie <airlied@linux.ie>
Sun, 18 Feb 2007 06:13:39 +0000 (17:13 +1100)
committerDave Airlie <airlied@linux.ie>
Sun, 11 Mar 2007 01:07:17 +0000 (12:07 +1100)
Signed-off-by: Dave Airlie <airlied@linux.ie>
drivers/char/drm/drm_fops.c

index 898f47dafec0b2fc6234e0c7f42ad3a4656e70ef..afe5f07f2e171e6001af950414d31df703080b07 100644 (file)
@@ -46,6 +46,7 @@ static int drm_setup(drm_device_t * dev)
        drm_local_map_t *map;
        int i;
        int ret;
+       u32 sareapage;
 
        if (dev->driver->firstopen) {
                ret = dev->driver->firstopen(dev);
@@ -56,7 +57,8 @@ static int drm_setup(drm_device_t * dev)
        dev->magicfree.next = NULL;
 
        /* prebuild the SAREA */
-       i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, _DRM_CONTAINS_LOCK, &map);
+       sareapage = max(SAREA_MAX, PAGE_SIZE);
+       i = drm_addmap(dev, 0, sareapage, _DRM_SHM, _DRM_CONTAINS_LOCK, &map);
        if (i != 0)
                return i;
 
@@ -84,7 +86,7 @@ static int drm_setup(drm_device_t * dev)
        INIT_LIST_HEAD(&dev->ctxlist->head);
 
        dev->vmalist = NULL;
-       dev->sigdata.lock = dev->lock.hw_lock = NULL;
+       dev->sigdata.lock = NULL;
        init_waitqueue_head(&dev->lock.lock_queue);
        dev->queue_count = 0;
        dev->queue_reserved = 0;