From: Christian König <christian.koenig@amd.com>
Date: Thu, 10 Jan 2019 15:40:42 +0000 (+0100)
Subject: drm/amdgpu: remove non-sense NULL ptr check
X-Git-Tag: v5.2-rc1~118^2~31^2~87
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3119e7f43be172779019f282aed115b2ec0864fa;p=thirdparty%2Flinux.git

drm/amdgpu: remove non-sense NULL ptr check

It's a bug having a dead pointer in the IDR, silently returning
is the worst we can do.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index 736ed1d67ec2a..b7289f7096442 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -570,12 +570,6 @@ void amdgpu_ctx_mgr_entity_flush(struct amdgpu_ctx_mgr *mgr)
 
 	mutex_lock(&mgr->lock);
 	idr_for_each_entry(idp, ctx, id) {
-
-		if (!ctx->adev) {
-			mutex_unlock(&mgr->lock);
-			return;
-		}
-
 		for (i = 0; i < num_entities; i++) {
 			struct drm_sched_entity *entity;
 
@@ -596,10 +590,6 @@ void amdgpu_ctx_mgr_entity_fini(struct amdgpu_ctx_mgr *mgr)
 	idp = &mgr->ctx_handles;
 
 	idr_for_each_entry(idp, ctx, id) {
-
-		if (!ctx->adev)
-			return;
-
 		if (kref_read(&ctx->refcount) != 1) {
 			DRM_ERROR("ctx %p is still alive\n", ctx);
 			continue;