[PATCH 20/22] drm/amd/display: Drop unnecessary ret variable for enable_assr()

[Tom Chung]

From: Mario Limonciello <mario.limoncie...@amd.com>

[Why]
enable_assr() has a res variable that only is changed in one block with
no cleanup necessary.

[How]
Remove variable and return early from failure cases.

Reviewed-by: Alex Hung <alex.h...@amd.com>
Signed-off-by: Mario Limonciello <mario.limoncie...@amd.com>
Signed-off-by: Tom Chung <chiahsuan.ch...@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
index 6f8f21e123c8..a3e93b2891f0 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
@@ -457,7 +457,6 @@ static bool enable_assr(void *handle, struct dc_link *link)
        struct mod_hdcp hdcp = hdcp_work->hdcp;
        struct psp_context *psp = hdcp.config.psp.handle;
        struct ta_dtm_shared_memory *dtm_cmd;
-       bool res = true;
 
        if (!psp->dtm_context.context.initialized) {
                DRM_INFO("Failed to enable ASSR, DTM TA is not initialized.");
@@ -478,10 +477,10 @@ static bool enable_assr(void *handle, struct dc_link 
*link)
 
        if (dtm_cmd->dtm_status != TA_DTM_STATUS__SUCCESS) {
                DRM_INFO("Failed to enable ASSR");
-               res = false;
+               return false;
        }
 
-       return res;
+       return true;
 }
 
 static void update_config(void *handle, struct cp_psp_stream_config *config)
-- 
2.34.1