diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c index cc7597a15fe9..2c1d82fc4c34 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c @@ -121,6 +121,7 @@ static ssize_t amdgpu_securedisplay_debugfs_write(struct file *f, const char __u switch (op) { case 1: + mutex_lock(&psp->securedisplay_context.mutex); psp_prep_securedisplay_cmd_buf(psp, &securedisplay_cmd, TA_SECUREDISPLAY_COMMAND__QUERY_TA); ret = psp_securedisplay_invoke(psp, TA_SECUREDISPLAY_COMMAND__QUERY_TA); @@ -131,8 +132,10 @@ static ssize_t amdgpu_securedisplay_debugfs_write(struct file *f, const char __u else psp_securedisplay_parse_resp_status(psp, securedisplay_cmd->status); } + mutex_unlock(&psp->securedisplay_context.mutex); break; case 2: + mutex_lock(&psp->securedisplay_context.mutex); psp_prep_securedisplay_cmd_buf(psp, &securedisplay_cmd, TA_SECUREDISPLAY_COMMAND__SEND_ROI_CRC); securedisplay_cmd->securedisplay_in_message.send_roi_crc.phy_id = phy_id; @@ -146,6 +149,7 @@ static ssize_t amdgpu_securedisplay_debugfs_write(struct file *f, const char __u psp_securedisplay_parse_resp_status(psp, securedisplay_cmd->status); } } + mutex_unlock(&psp->securedisplay_context.mutex); break; default: dev_err(adev->dev, "Invalid input: %s\n", str); |