If we want to return from for_each_intel_connector_iter(), one way is calling drm_connector_list_iter_end() before returning to avoid memleak. The other way is just breaking from the bracket and then returning after the outside drm_connector_list_iter_end(). Obviously, the second way makes code smaller and more clear. Apply it to the function intel_dp_mst_atomic_master_trans_check().
Signed-off-by: He Ying heying24@huawei.com --- drivers/gpu/drm/i915/display/intel_dp_mst.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 8d13d7b26a25..bbecbbbcb10d 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -231,6 +231,7 @@ intel_dp_mst_atomic_master_trans_check(struct intel_connector *connector, struct drm_i915_private *dev_priv = to_i915(state->base.dev); struct drm_connector_list_iter connector_list_iter; struct intel_connector *connector_iter; + int ret = 0;
if (DISPLAY_VER(dev_priv) < 12) return 0; @@ -243,7 +244,6 @@ intel_dp_mst_atomic_master_trans_check(struct intel_connector *connector, struct intel_digital_connector_state *conn_iter_state; struct intel_crtc_state *crtc_state; struct intel_crtc *crtc; - int ret;
if (connector_iter->mst_port != connector->mst_port || connector_iter == connector) @@ -252,8 +252,8 @@ intel_dp_mst_atomic_master_trans_check(struct intel_connector *connector, conn_iter_state = intel_atomic_get_digital_connector_state(state, connector_iter); if (IS_ERR(conn_iter_state)) { - drm_connector_list_iter_end(&connector_list_iter); - return PTR_ERR(conn_iter_state); + ret = PTR_ERR(conn_iter_state); + break; }
if (!conn_iter_state->base.crtc) @@ -262,20 +262,18 @@ intel_dp_mst_atomic_master_trans_check(struct intel_connector *connector, crtc = to_intel_crtc(conn_iter_state->base.crtc); crtc_state = intel_atomic_get_crtc_state(&state->base, crtc); if (IS_ERR(crtc_state)) { - drm_connector_list_iter_end(&connector_list_iter); - return PTR_ERR(crtc_state); + ret = PTR_ERR(crtc_state); + break; }
ret = drm_atomic_add_affected_planes(&state->base, &crtc->base); - if (ret) { - drm_connector_list_iter_end(&connector_list_iter); - return ret; - } + if (ret) + break; crtc_state->uapi.mode_changed = true; } drm_connector_list_iter_end(&connector_list_iter);
- return 0; + return ret; }
static int