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7117007eda
[Why] Before we call psp_securedisplay_invoke(), we call psp_prep_securedisplay_cmd_buf() to prepare and initialize the command buffer. However, we didn't use the mutex_lock to protect the status of command buffer. So when multiple threads are using the command buffer, after thread A return from psp_securedisplay_invoke() and the command buffer status is set to SUCCESS, another thread B may call psp_prep_securedisplay_cmd_buf() and initialize the status to FAILURE again, and cause Thread A to get a failure return status. [How] Move the mutex_lock out of psp_securedisplay_invoke() to its caller to cover psp_prep_securedisplay_cmd_buf() and the code checking the return status of command buffer. Signed-off-by: Alan Liu <HaoPing.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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| .. | ||
| amdgpu_dm.c | ||
| amdgpu_dm.h | ||
| amdgpu_dm_color.c | ||
| amdgpu_dm_crc.c | ||
| amdgpu_dm_crc.h | ||
| amdgpu_dm_crtc.c | ||
| amdgpu_dm_crtc.h | ||
| amdgpu_dm_debugfs.c | ||
| amdgpu_dm_debugfs.h | ||
| amdgpu_dm_hdcp.c | ||
| amdgpu_dm_hdcp.h | ||
| amdgpu_dm_helpers.c | ||
| amdgpu_dm_irq.c | ||
| amdgpu_dm_irq.h | ||
| amdgpu_dm_irq_params.h | ||
| amdgpu_dm_mst_types.c | ||
| amdgpu_dm_mst_types.h | ||
| amdgpu_dm_plane.c | ||
| amdgpu_dm_plane.h | ||
| amdgpu_dm_pp_smu.c | ||
| amdgpu_dm_psr.c | ||
| amdgpu_dm_psr.h | ||
| amdgpu_dm_services.c | ||
| amdgpu_dm_trace.h | ||
| dc_fpu.c | ||
| dc_fpu.h | ||
| Makefile | ||