diff options
| author | Stanley.Yang <Stanley.Yang@amd.com> | 2024-02-05 15:55:48 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-01 13:41:43 +0100 |
| commit | bc3639e287f33c60f2884e87a69103489e8f0bee (patch) | |
| tree | d90696c4dd6aea4518d380649ee35850359d2018 | |
| parent | c832e8c8265b7053b0c23fa300572248da103abb (diff) | |
drm/amdgpu: Fix shared buff copy to user
[ Upstream commit 2dcf82a8e8dc930655787797ef8a3692b527c7a9 ]
ta if invoke node buffer
|-------- ta type ----------|
|-------- ta id ----------|
|-------- cmd id ----------|
|------ shared buf len -----|
|------ shared buffer ------|
ta if invoke node buffer is as above, copy shared buffer data to correct location
Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c index 468a67b302d4c..ca5c86e5f7cd6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c @@ -362,7 +362,7 @@ static ssize_t ta_if_invoke_debugfs_write(struct file *fp, const char *buf, size } } - if (copy_to_user((char *)buf, context->mem_context.shared_buf, shared_buf_len)) + if (copy_to_user((char *)&buf[copy_pos], context->mem_context.shared_buf, shared_buf_len)) ret = -EFAULT; err_free_shared_buf: |