From: Roger He <Hongbo.He@amd.com>
Date: Thu, 11 Jan 2018 09:00:14 +0000 (+0800)
Subject: drm/ttm: only free pages rather than update global memory count together
X-Git-Tag: v4.16-rc1~96^2~3^2~13
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=9483ce7c6ed5980fcc45643d391b17317b40406a;p=linux.git

drm/ttm: only free pages rather than update global memory count together

if ttm_get_pages or ttm_mem_global_alloc_page fail, should not update
global memory count.

Signed-off-by: Roger He <Hongbo.He@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Acked-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index e48e387d4d17..6288389e6959 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -1073,7 +1073,8 @@ int ttm_pool_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
 	ret = ttm_get_pages(ttm->pages, ttm->num_pages, ttm->page_flags,
 			    ttm->caching_state);
 	if (unlikely(ret != 0)) {
-		ttm_pool_unpopulate(ttm);
+		ttm_put_pages(ttm->pages, ttm->num_pages, ttm->page_flags,
+			      ttm->caching_state);
 		return ret;
 	}
 
@@ -1081,7 +1082,8 @@ int ttm_pool_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
 		ret = ttm_mem_global_alloc_page(mem_glob, ttm->pages[i],
 						PAGE_SIZE, ctx);
 		if (unlikely(ret != 0)) {
-			ttm_pool_unpopulate(ttm);
+			ttm_put_pages(ttm->pages, ttm->num_pages,
+				      ttm->page_flags, ttm->caching_state);
 			return -ENOMEM;
 		}
 	}