From ed0dfad6b793be234665d361cd70a63fe870fe00 Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Wed, 13 Apr 2022 09:21:33 +0100
Subject: drm/ttm: fixup ttm_bo_add_move_fence v2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Git-commit: 7be2bb8c2ff3f769c49f5a527e7ea992b81e9ca1
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
It looks like we still need to call dma_fence_put() on the man->move,
otherwise we just end up leaking it, leading to fireworks later.
v2(Daniel):
- Simplify the function tail
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5689
Fixes: 8bb31587820a ("drm/ttm: remove bo->moving")
Cc: Christian König <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220413082133.272445-1-matthew.auld@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/ttm/ttm_bo.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 015a94f766de..75d308ec173d 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -740,11 +740,8 @@ static int ttm_bo_add_move_fence(struct ttm_buffer_object *bo,
dma_resv_add_fence(bo->base.resv, fence, DMA_RESV_USAGE_KERNEL);
ret = dma_resv_reserve_fences(bo->base.resv, 1);
- if (unlikely(ret)) {
- dma_fence_put(fence);
- return ret;
- }
- return 0;
+ dma_fence_put(fence);
+ return ret;
}
/*
--
2.38.1