From: Christian König <christian.koenig@amd.com>
Date: Fri, 16 Sep 2016 11:11:45 +0000 (+0200)
Subject: drm/amdgpu: fix initializing the VM last eviction counter
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2a82ec21b9ba342dc90e054458e430f577beca89;p=linux-beck.git

drm/amdgpu: fix initializing the VM last eviction counter

Close a very small window where something can go wrong.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 9f4ff29df80d..04aa5a77e953 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1629,13 +1629,17 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
 		goto error_free_page_directory;
 
 	r = amdgpu_vm_clear_bo(adev, vm, vm->page_directory);
-	amdgpu_bo_unreserve(vm->page_directory);
 	if (r)
-		goto error_free_page_directory;
+		goto error_unreserve;
+
 	vm->last_eviction_counter = atomic64_read(&adev->num_evictions);
+	amdgpu_bo_unreserve(vm->page_directory);
 
 	return 0;
 
+error_unreserve:
+	amdgpu_bo_unreserve(vm->page_directory);
+
 error_free_page_directory:
 	amdgpu_bo_unref(&vm->page_directory->shadow);
 	amdgpu_bo_unref(&vm->page_directory);