From: Francisco Jerez Date: Thu, 28 Oct 2010 21:10:29 +0000 (+0200) Subject: drm/nouveau: Fix sleep while atomic in nouveau_bo_fence(). X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=23c45e8ed203f933753fb66a6290c4ff853eb7bb;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/nouveau: Fix sleep while atomic in nouveau_bo_fence(). Reported-by: Pekka Paalanen Signed-off-by: Francisco Jerez Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 8d5dd980240d..f4ee43db00aa 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -942,13 +942,17 @@ nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo) void nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence) { - spin_lock(&nvbo->bo.bdev->fence_lock); - __nouveau_fence_unref(&nvbo->bo.sync_obj); + struct nouveau_fence *old_fence; if (likely(fence)) - nvbo->bo.sync_obj = nouveau_fence_ref(fence); + nouveau_fence_ref(fence); + spin_lock(&nvbo->bo.bdev->fence_lock); + old_fence = nvbo->bo.sync_obj; + nvbo->bo.sync_obj = fence; spin_unlock(&nvbo->bo.bdev->fence_lock); + + nouveau_fence_unref(&old_fence); } struct ttm_bo_driver nouveau_bo_driver = {