[PATCH 3/3] drm/amdgpu/userq: return the memdup_user() error for the user MQD

[Jesse Zhang]

mes_userq_mqd_create() returns -ENOMEM when copying the user MQD fails,
even though memdup_user() returns -EFAULT for a bad pointer. Return
PTR_ERR() instead.

Fixes: 2c695d7c0720 ("drm/amdgpu: enable compute/gfx usermode queue")
Fixes: 543b61453774 ("drm/amdgpu: enable SDMA usermode queues")
Signed-off-by: Jesse Zhang <jesse.zh...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/mes_userqueue.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c 
b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
index e6c167a39d44..fee00a8c08e7 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
@@ -408,7 +408,7 @@ static int mes_userq_mqd_create(struct 
amdgpu_usermode_queue *queue,
                compute_mqd = memdup_user(u64_to_user_ptr(mqd_user->mqd), 
mqd_user->mqd_size);
                if (IS_ERR(compute_mqd)) {
                        DRM_ERROR("Failed to read user MQD\n");
-                       r = -ENOMEM;
+                       r = PTR_ERR(compute_mqd);
                        goto free_mqd;
                }
 
@@ -453,7 +453,7 @@ static int mes_userq_mqd_create(struct 
amdgpu_usermode_queue *queue,
                mqd_gfx_v11 = memdup_user(u64_to_user_ptr(mqd_user->mqd), 
mqd_user->mqd_size);
                if (IS_ERR(mqd_gfx_v11)) {
                        DRM_ERROR("Failed to read user MQD\n");
-                       r = -ENOMEM;
+                       r = PTR_ERR(mqd_gfx_v11);
                        goto free_mqd;
                }
 
@@ -498,7 +498,7 @@ static int mes_userq_mqd_create(struct 
amdgpu_usermode_queue *queue,
                mqd_sdma_v11 = memdup_user(u64_to_user_ptr(mqd_user->mqd), 
mqd_user->mqd_size);
                if (IS_ERR(mqd_sdma_v11)) {
                        DRM_ERROR("Failed to read sdma user MQD\n");
-                       r = -ENOMEM;
+                       r = PTR_ERR(mqd_sdma_v11);
                        goto free_mqd;
                }
 
-- 
2.50.1