From: Tom St Denis <tom.stdenis@amd.com>
Date: Thu, 25 Jan 2018 13:40:21 -0500
Subject: drm/ttm: Simplify ttm_dma_page_put()
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Git-commit: 7ca34ddc7866230a1a6c2fa9cc0167dd841bd583
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Remove redundant store of return code.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/ttm/ttm_page_alloc_dma.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
@@ -390,14 +390,12 @@ static void ttm_dma_page_put(struct dma_
 {
 	struct page *page = d_page->p;
 	unsigned i, num_pages;
-	int ret;
 
 	/* Don't set WB on WB page pool. */
 	if (!(pool->type & IS_CACHED)) {
 		num_pages = pool->size / PAGE_SIZE;
 		for (i = 0; i < num_pages; ++i, ++page) {
-			ret = set_pages_array_wb(&page, 1);
-			if (ret) {
+			if (set_pages_array_wb(&page, 1)) {
 				pr_err("%s: Failed to set %d pages to wb!\n",
 				       pool->dev_name, 1);
 			}