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    Subject[PATCH 3.12 054/103] drm/qxl: unset a pointer in sync_obj_unref
    Date
    From: Maarten Lankhorst <maarten.lankhorst@canonical.com>

    3.12-stable review patch. If anyone has any objections, please let me know.

    ===============

    commit 41ccec352f3c823931a7d9d2a9c7880c14d7415a upstream.

    This fixes a BUG_ON(bo->sync_obj != NULL); in ttm_bo_release_list.

    Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
    Signed-off-by: Dave Airlie <airlied@redhat.com>
    Signed-off-by: Jiri Slaby <jslaby@suse.cz>
    ---
    drivers/gpu/drm/qxl/qxl_ttm.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
    index 037786d7c1dc..ed90fbe63686 100644
    --- a/drivers/gpu/drm/qxl/qxl_ttm.c
    +++ b/drivers/gpu/drm/qxl/qxl_ttm.c
    @@ -433,6 +433,7 @@ static int qxl_sync_obj_flush(void *sync_obj)

    static void qxl_sync_obj_unref(void **sync_obj)
    {
    + *sync_obj = NULL;
    }

    static void *qxl_sync_obj_ref(void *sync_obj)
    --
    1.9.3


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