From: Alex Hung <alex.hung@xxxxxxx>
The null checks are redundant as they were already dereferenced
previously, as reported by Coverity; therefore the null checks
are removed.
This fixes 7 REVERSE_INULL issues reported by Coverity.
Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
Acked-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
---
.../display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c | 2 +-
drivers/gpu/drm/amd/display/dc/core/dc.c | 4 +-
.../gpu/drm/amd/display/dc/core/dc_resource.c | 2 +-
.../dc/dml2/dml21/dml21_translation_helper.c | 4 +-
.../amd/display/dc/hwss/dce110/dce110_hwseq.c | 8 +-
.../amd/display/dc/hwss/dcn32/dcn32_hwseq.c | 81 +++++++++----------
6 files changed, 47 insertions(+), 54 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
index ee4b02c8c807..06f0c41ad6f1 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
@@ -553,7 +553,7 @@ static void dcn32_auto_dpm_test_log(
//
// AutoDPMTest: clk1:%d - clk2:%d - clk3:%d - clk4:%d\n"
////////////////////////////////////////////////////////////////////////////
- if (new_clocks && active_pipe_count > 0 &&
+ if (active_pipe_count > 0 &&
new_clocks->dramclk_khz > 0 &&
new_clocks->fclk_khz > 0 &&
new_clocks->dcfclk_khz > 0 &&
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index fce1c3e03094..a4ba6f99cd34 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2640,7 +2640,7 @@ static enum surface_update_type det_surface_update(const struct dc *dc,
if (u->plane_info)
format = u->plane_info->format;
- else if (u->surface)
+ else
format = u->surface->format;
if (dce_use_lut(format))
@@ -2741,7 +2741,7 @@ static enum surface_update_type check_update_surfaces_for_stream(
if (stream_update->mst_bw_update)
su_flags->bits.mst_bw = 1;
- if (stream_update->stream && stream_update->stream->freesync_on_desktop &&
+ if (stream_update->stream->freesync_on_desktop &&
(stream_update->vrr_infopacket || stream_update->allow_freesync ||
stream_update->vrr_active_variable || stream_update->vrr_active_fixed))
su_flags->bits.fams_changed = 1;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 1cba8f58f1e6..eb053e1791c0 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -2099,7 +2099,7 @@ int resource_get_odm_slice_dst_width(struct pipe_ctx *otg_master,
timing->h_border_right;
width = h_active / count;
- if (otg_master->stream_res.tg && otg_master->stream)
+ if (otg_master->stream_res.tg)
two_pixel_alignment_required =
otg_master->stream_res.tg->funcs->is_two_pixels_per_container(timing) ||
/*
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c
index a7d02da16bb5..d5ead0205053 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c
@@ -102,9 +102,7 @@ void dml21_apply_soc_bb_overrides(struct dml2_initialize_instance_in_out *dml_in
struct dml2_soc_state_table *dml_clk_table = &dml_soc_bb->clk_table;
/* override clocks if smu is present */
- if (in_dc->clk_mgr &&
- in_dc->clk_mgr->funcs->is_smu_present &&
- in_dc->clk_mgr->funcs->is_smu_present(in_dc->clk_mgr)) {
+ if (in_dc->clk_mgr->funcs->is_smu_present && in_dc->clk_mgr->funcs->is_smu_present(in_dc->clk_mgr)) {
/* dcfclk */
if (dc_clk_table->num_entries_per_clk.num_dcfclk_levels) {
dml_clk_table->dcfclk.num_clk_values = dc_clk_table->num_entries_per_clk.num_dcfclk_levels;
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
index 871f1e1ca2e0..307af11b4bb6 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
@@ -742,12 +742,10 @@ void dce110_edp_wait_for_hpd_ready(
return;
}
- if (link != NULL) {
- if (link->panel_config.pps.extra_t3_ms > 0) {
- int extra_t3_in_ms = link->panel_config.pps.extra_t3_ms;
+ if (link->panel_config.pps.extra_t3_ms > 0) {
+ int extra_t3_in_ms = link->panel_config.pps.extra_t3_ms;
- msleep(extra_t3_in_ms);
- }
+ msleep(extra_t3_in_ms);
}
dal_gpio_open(hpd, GPIO_MODE_INTERRUPT);
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
index a597b2342472..64a158625fc2 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
@@ -271,58 +271,55 @@ bool dcn32_apply_idle_power_optimizations(struct dc *dc, bool enable)
}
if (enable) {
- if (dc->current_state) {
+ /* 1. Check no memory request case for CAB.
+ * If no memory request case, send CAB_ACTION NO_DF_REQ DMUB message
+ */
+ if (dcn32_check_no_memory_request_for_cab(dc)) {
+ /* Enable no-memory-requests case */
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.cab.header.type = DMUB_CMD__CAB_FOR_SS;
+ cmd.cab.header.sub_type = DMUB_CMD__CAB_NO_DCN_REQ;
+ cmd.cab.header.payload_bytes = sizeof(cmd.cab) - sizeof(cmd.cab.header);
- /* 1. Check no memory request case for CAB.
- * If no memory request case, send CAB_ACTION NO_DF_REQ DMUB message
- */
- if (dcn32_check_no_memory_request_for_cab(dc)) {
- /* Enable no-memory-requests case */
- memset(&cmd, 0, sizeof(cmd));
- cmd.cab.header.type = DMUB_CMD__CAB_FOR_SS;
- cmd.cab.header.sub_type = DMUB_CMD__CAB_NO_DCN_REQ;
- cmd.cab.header.payload_bytes = sizeof(cmd.cab) - sizeof(cmd.cab.header);
+ dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_NO_WAIT);
- dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_NO_WAIT);
+ return true;
+ }
- return true;
- }
+ /* 2. Check if all surfaces can fit in CAB.
+ * If surfaces can fit into CAB, send CAB_ACTION_ALLOW DMUB message
+ * and configure HUBP's to fetch from MALL
+ */
+ ways = dcn32_calculate_cab_allocation(dc, dc->current_state);
- /* 2. Check if all surfaces can fit in CAB.
- * If surfaces can fit into CAB, send CAB_ACTION_ALLOW DMUB message
- * and configure HUBP's to fetch from MALL
- */
- ways = dcn32_calculate_cab_allocation(dc, dc->current_state);
+ /* MALL not supported with Stereo3D or TMZ surface. If any plane is using stereo,
+ * or TMZ surface, don't try to enter MALL.
+ */
+ for (i = 0; i < dc->current_state->stream_count; i++) {
+ for (j = 0; j < dc->current_state->stream_status[i].plane_count; j++) {
+ plane = dc->current_state->stream_status[i].plane_states[j];
- /* MALL not supported with Stereo3D or TMZ surface. If any plane is using stereo,
- * or TMZ surface, don't try to enter MALL.
- */
- for (i = 0; i < dc->current_state->stream_count; i++) {
- for (j = 0; j < dc->current_state->stream_status[i].plane_count; j++) {
- plane = dc->current_state->stream_status[i].plane_states[j];
-
- if (plane->address.type == PLN_ADDR_TYPE_GRPH_STEREO ||
- plane->address.tmz_surface) {
- mall_ss_unsupported = true;
- break;
- }
- }
- if (mall_ss_unsupported)
+ if (plane->address.type == PLN_ADDR_TYPE_GRPH_STEREO ||
+ plane->address.tmz_surface) {
+ mall_ss_unsupported = true;
break;
+ }
}
- if (ways <= dc->caps.cache_num_ways && !mall_ss_unsupported) {
- memset(&cmd, 0, sizeof(cmd));
- cmd.cab.header.type = DMUB_CMD__CAB_FOR_SS;
- cmd.cab.header.sub_type = DMUB_CMD__CAB_DCN_SS_FIT_IN_CAB;
- cmd.cab.header.payload_bytes = sizeof(cmd.cab) - sizeof(cmd.cab.header);
- cmd.cab.cab_alloc_ways = (uint8_t)ways;
-
- dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_NO_WAIT);
+ if (mall_ss_unsupported)
+ break;
+ }
+ if (ways <= dc->caps.cache_num_ways && !mall_ss_unsupported) {
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.cab.header.type = DMUB_CMD__CAB_FOR_SS;
+ cmd.cab.header.sub_type = DMUB_CMD__CAB_DCN_SS_FIT_IN_CAB;
+ cmd.cab.header.payload_bytes = sizeof(cmd.cab) - sizeof(cmd.cab.header);
+ cmd.cab.cab_alloc_ways = (uint8_t)ways;
- return true;
- }
+ dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_NO_WAIT);
+ return true;
}
+
return false;
}
--
2.45.1
