Alan Liu 7117007eda drm/amdgpu: Move the mutex_lock to protect the return status of securedisplay command buffer ... [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>		2022-10-27 15:12:08 -04:00
..
amdgpu_dm	drm/amdgpu: Move the mutex_lock to protect the return status of securedisplay command buffer	2022-10-27 15:12:08 -04:00
dc	drm/amd/display: Rework comments on dc file	2022-10-27 14:46:21 -04:00
dmub	drm/amd/display: Document part of the DMUB cmd	2022-10-27 14:43:00 -04:00
include	drm/amd/display: Refactor LTTPR mode selection	2022-09-29 09:41:46 -04:00
modules	drm/amd/display: Wrong colorimetry workaround	2022-10-27 14:45:14 -04:00
Kconfig	drm/amdgpu/display: remove unneeded "default n" options	2022-09-13 14:32:58 -04:00
Makefile
TODO