[PATCH 03/15] dmr/msm: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN()

[Fernando Ramos]

As requested in Documentation/gpu/todo.rst, replace the boilerplate code
surrounding drm_modeset_lock_all_ctx() with DRM_MODESET_LOCK_ALL_BEGIN()
and DRM_MODESET_LOCK_ALL_END()

Signed-off-by: Fernando Ramos <green...@u92.eu>
---
 drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c 
b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
index cabe15190ec1..c83db90b0e02 100644
--- a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
+++ b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
@@ -99,20 +99,18 @@ static void msm_disp_capture_atomic_state(struct 
msm_disp_state *disp_state)
 {
        struct drm_device *ddev;
        struct drm_modeset_acquire_ctx ctx;
+       int ret;
 
        disp_state->timestamp = ktime_get();
 
        ddev = disp_state->drm_dev;
 
-       drm_modeset_acquire_init(&ctx, 0);
-
-       while (drm_modeset_lock_all_ctx(ddev, &ctx) != 0)
-               drm_modeset_backoff(&ctx);
+       DRM_MODESET_LOCK_ALL_BEGIN(ddev, ctx, 0, ret);
 
        disp_state->atomic_state = drm_atomic_helper_duplicate_state(ddev,
                        &ctx);
-       drm_modeset_drop_locks(&ctx);
-       drm_modeset_acquire_fini(&ctx);
+
+       DRM_MODESET_LOCK_ALL_END(ddev, ctx, ret);
 }
 
 void msm_disp_snapshot_capture_state(struct msm_disp_state *disp_state)
-- 
2.33.0