From: Nirmoy Das <nirmoy.das@amd.com>
Date: Fri, 19 Mar 2021 18:54:31 +0000 (+0100)
Subject: drm/amdgpu: fix amdgpu_res_first()
X-Git-Tag: v5.13-rc1~123^2~3^2~175
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=15e16daa35ba15424969cccb1b0aad2b8810e761;p=thirdparty%2Fkernel%2Flinux.git

drm/amdgpu: fix amdgpu_res_first()

Fix size comparison in the resource cursor.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
index b49a61d07d605..40f2adf305bc2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
@@ -64,7 +64,7 @@ static inline void amdgpu_res_first(struct ttm_resource *res,
 	BUG_ON(start + size > res->num_pages << PAGE_SHIFT);
 
 	node = res->mm_node;
-	while (start > node->size << PAGE_SHIFT)
+	while (start >= node->size << PAGE_SHIFT)
 		start -= node++->size << PAGE_SHIFT;
 
 	cur->start = (node->start << PAGE_SHIFT) + start;