From ba3193fa8fc8910f724b67a523ec67ee24997d3e Mon Sep 17 00:00:00 2001 From: Alex Hung Date: Mon, 15 Apr 2024 19:05:34 -0600 Subject: [PATCH] drm/amd/display: Fix uninitialized variables in DC This fixes 49 UNINIT issues reported by Coverity. Reviewed-by: Hersen Wu Acked-by: Wayne Lin Signed-off-by: Alex Hung Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++-- .../gpu/drm/amd/display/dc/core/dc_resource.c | 2 +- drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c | 2 +- .../amd/display/dc/dml2/dml2_dc_resource_mgmt.c | 2 +- .../drm/amd/display/dc/dpp/dcn10/dcn10_dpp_cm.c | 2 +- .../drm/amd/display/dc/dpp/dcn20/dcn20_dpp_cm.c | 2 +- .../drm/amd/display/dc/dpp/dcn30/dcn30_dpp_cm.c | 2 +- .../gpu/drm/amd/display/dc/gpio/gpio_service.c | 6 +++--- .../amd/display/dc/hwss/dce110/dce110_hwseq.c | 4 ++-- .../drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c | 6 +++--- .../amd/display/dc/hwss/dcn201/dcn201_hwseq.c | 2 +- .../drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c | 2 +- .../drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c | 2 +- drivers/gpu/drm/amd/display/dc/link/link_dpms.c | 8 ++++---- .../dc/link/protocols/link_dp_capability.c | 16 ++++++++-------- .../dc/link/protocols/link_dp_irq_handler.c | 10 +++++----- .../dc/link/protocols/link_edp_panel_control.c | 4 ++-- .../drm/amd/display/dc/link/protocols/link_hpd.c | 2 +- 18 files changed, 39 insertions(+), 39 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 8eefba757da4..eb2aa90b370b 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1306,7 +1306,7 @@ static void disable_vbios_mode_if_required( if (link != NULL && link->link_enc->funcs->is_dig_enabled(link->link_enc)) { unsigned int enc_inst, tg_inst = 0; - unsigned int pix_clk_100hz; + unsigned int pix_clk_100hz = 0; enc_inst = link->link_enc->funcs->get_dig_frontend(link->link_enc); if (enc_inst != ENGINE_ID_UNKNOWN) { @@ -1793,7 +1793,7 @@ bool dc_validate_boot_timing(const struct dc *dc, return false; if (dc_is_dp_signal(link->connector_signal)) { - unsigned int pix_clk_100hz; + unsigned int pix_clk_100hz = 0; uint32_t numOdmPipes = 1; uint32_t id_src[4] = {0}; 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 f281dc89550b..15819416a2f3 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -3042,7 +3042,7 @@ bool resource_update_pipes_for_plane_with_slice_count( int i; int dpp_pipe_count; int cur_slice_count; - struct pipe_ctx *dpp_pipes[MAX_PIPES]; + struct pipe_ctx *dpp_pipes[MAX_PIPES] = {0}; bool result = true; dpp_pipe_count = resource_get_dpp_pipes_for_plane(plane, diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c index 5ebb57303130..fca94e50ae93 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c @@ -1183,7 +1183,7 @@ void mpc3_get_gamut_remap(struct mpc *mpc, struct mpc_grph_gamut_adjustment *adjust) { struct dcn30_mpc *mpc30 = TO_DCN30_MPC(mpc); - uint16_t arr_reg_val[12]; + uint16_t arr_reg_val[12] = {0}; int select; read_gamut_remap(mpc30, mpcc_id, arr_reg_val, &select); diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c index 0c96f9d15279..ad2a6b4769fe 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c @@ -864,7 +864,7 @@ static unsigned int get_source_mpc_factor(const struct dml2_context *ctx, struct dc_state *state, const struct dc_plane_state *plane) { - struct pipe_ctx *dpp_pipes[MAX_PIPES]; + struct pipe_ctx *dpp_pipes[MAX_PIPES] = {0}; int dpp_pipe_count = ctx->config.callbacks.get_dpp_pipes_for_plane(plane, &state->res_ctx, dpp_pipes); diff --git a/drivers/gpu/drm/amd/display/dc/dpp/dcn10/dcn10_dpp_cm.c b/drivers/gpu/drm/amd/display/dc/dpp/dcn10/dcn10_dpp_cm.c index 20481b144609..006e23842016 100644 --- a/drivers/gpu/drm/amd/display/dc/dpp/dcn10/dcn10_dpp_cm.c +++ b/drivers/gpu/drm/amd/display/dc/dpp/dcn10/dcn10_dpp_cm.c @@ -234,7 +234,7 @@ void dpp1_cm_get_gamut_remap(struct dpp *dpp_base, struct dpp_grph_csc_adjustment *adjust) { struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base); - uint16_t arr_reg_val[12]; + uint16_t arr_reg_val[12] = {0}; enum gamut_remap_select select; read_gamut_remap(dpp, arr_reg_val, &select); diff --git a/drivers/gpu/drm/amd/display/dc/dpp/dcn20/dcn20_dpp_cm.c b/drivers/gpu/drm/amd/display/dc/dpp/dcn20/dcn20_dpp_cm.c index f43fa29971f2..31613372e214 100644 --- a/drivers/gpu/drm/amd/display/dc/dpp/dcn20/dcn20_dpp_cm.c +++ b/drivers/gpu/drm/amd/display/dc/dpp/dcn20/dcn20_dpp_cm.c @@ -274,7 +274,7 @@ void dpp2_cm_get_gamut_remap(struct dpp *dpp_base, struct dpp_grph_csc_adjustment *adjust) { struct dcn20_dpp *dpp = TO_DCN20_DPP(dpp_base); - uint16_t arr_reg_val[12]; + uint16_t arr_reg_val[12] = {0}; enum dcn20_gamut_remap_select select; read_gamut_remap(dpp, arr_reg_val, &select); diff --git a/drivers/gpu/drm/amd/display/dc/dpp/dcn30/dcn30_dpp_cm.c b/drivers/gpu/drm/amd/display/dc/dpp/dcn30/dcn30_dpp_cm.c index ce1b3cf7e1bb..82eca0e7b7d0 100644 --- a/drivers/gpu/drm/amd/display/dc/dpp/dcn30/dcn30_dpp_cm.c +++ b/drivers/gpu/drm/amd/display/dc/dpp/dcn30/dcn30_dpp_cm.c @@ -445,7 +445,7 @@ void dpp3_cm_get_gamut_remap(struct dpp *dpp_base, struct dpp_grph_csc_adjustment *adjust) { struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base); - uint16_t arr_reg_val[12]; + uint16_t arr_reg_val[12] = {0}; int select; read_gamut_remap(dpp, arr_reg_val, &select); diff --git a/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c b/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c index 3ede6e02c3a7..663c17f52779 100644 --- a/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c +++ b/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c @@ -128,7 +128,7 @@ struct gpio *dal_gpio_service_create_irq( uint32_t offset, uint32_t mask) { - enum gpio_id id; + enum gpio_id id = 0; uint32_t en; if (!service->translate.funcs->offset_to_id(offset, mask, &id, &en)) { @@ -144,7 +144,7 @@ struct gpio *dal_gpio_service_create_generic_mux( uint32_t offset, uint32_t mask) { - enum gpio_id id; + enum gpio_id id = 0; uint32_t en; struct gpio *generic; @@ -178,7 +178,7 @@ struct gpio_pin_info dal_gpio_get_generic_pin_info( enum gpio_id id, uint32_t en) { - struct gpio_pin_info pin; + struct gpio_pin_info pin = {0}; if (service->translate.funcs->id_to_offset) { service->translate.funcs->id_to_offset(id, en, &pin); 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 5920d1825a4c..0d3ea291eeee 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 @@ -1537,7 +1537,7 @@ enum dc_status dce110_apply_single_controller_ctx_to_hw( } if (pipe_ctx->stream_res.audio != NULL) { - struct audio_output audio_output; + struct audio_output audio_output = {0}; build_audio_output(context, pipe_ctx, &audio_output); @@ -2260,7 +2260,7 @@ static void dce110_setup_audio_dto( continue; if (pipe_ctx->stream_res.audio != NULL) { - struct audio_output audio_output; + struct audio_output audio_output = {0}; build_audio_output(context, pipe_ctx, &audio_output); diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c index 088224571029..0c4aef8ffe2c 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c @@ -2185,7 +2185,7 @@ static int dcn10_align_pixel_clocks(struct dc *dc, int group_size, struct dc_crtc_timing *hw_crtc_timing; uint64_t phase[MAX_PIPES]; uint64_t modulo[MAX_PIPES]; - unsigned int pclk; + unsigned int pclk = 0; uint32_t embedded_pix_clk_100hz; uint16_t embedded_h_total; @@ -2276,7 +2276,7 @@ void dcn10_enable_vblanks_synchronization( struct dc_context *dc_ctx = dc->ctx; struct output_pixel_processor *opp; struct timing_generator *tg; - int i, width, height, master; + int i, width = 0, height = 0, master; DC_LOGGER_INIT(dc_ctx->logger); @@ -2342,7 +2342,7 @@ void dcn10_enable_timing_synchronization( struct dc_context *dc_ctx = dc->ctx; struct output_pixel_processor *opp; struct timing_generator *tg; - int i, width, height; + int i, width = 0, height = 0; DC_LOGGER_INIT(dc_ctx->logger); diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn201/dcn201_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn201/dcn201_hwseq.c index d5769f38874f..6be846635a79 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn201/dcn201_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn201/dcn201_hwseq.c @@ -167,7 +167,7 @@ void dcn201_init_blank( struct tg_color black_color = {0}; struct output_pixel_processor *opp = NULL; uint32_t num_opps, opp_id_src0, opp_id_src1; - uint32_t otg_active_width, otg_active_height; + uint32_t otg_active_width = 0, otg_active_height = 0; /* program opp dpg blank color */ color_space = COLOR_SPACE_SRGB; diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c index 7252f5f781f0..804be977ea47 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c @@ -66,7 +66,7 @@ static void mmhub_update_page_table_config(struct dcn_hubbub_phys_addr_config *c int dcn21_init_sys_ctx(struct dce_hwseq *hws, struct dc *dc, struct dc_phy_addr_space_config *pa_config) { - struct dcn_hubbub_phys_addr_config config; + struct dcn_hubbub_phys_addr_config config = {0}; config.system_aperture.fb_top = pa_config->system_aperture.fb_top; config.system_aperture.fb_offset = pa_config->system_aperture.fb_offset; diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c index 9ab475a87545..1c8abb417b6e 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c @@ -479,7 +479,7 @@ void dcn31_hubp_pg_control(struct dce_hwseq *hws, unsigned int hubp_inst, bool p int dcn31_init_sys_ctx(struct dce_hwseq *hws, struct dc *dc, struct dc_phy_addr_space_config *pa_config) { - struct dcn_hubbub_phys_addr_config config; + struct dcn_hubbub_phys_addr_config config = {0}; config.system_aperture.fb_top = pa_config->system_aperture.fb_top; config.system_aperture.fb_offset = pa_config->system_aperture.fb_offset; diff --git a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c index 938421e02770..b53ad18dbfbc 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c @@ -726,7 +726,7 @@ static void set_avmute(struct pipe_ctx *pipe_ctx, bool enable) static void enable_mst_on_sink(struct dc_link *link, bool enable) { - unsigned char mstmCntl; + unsigned char mstmCntl = 0; core_link_read_dpcd(link, DP_MSTM_CTRL, &mstmCntl, 1); if (enable) @@ -804,7 +804,7 @@ void link_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable) if (enable) { struct dsc_config dsc_cfg; - struct dsc_optc_config dsc_optc_cfg; + struct dsc_optc_config dsc_optc_cfg = {0}; enum optc_dsc_mode optc_dsc_mode; /* Enable DSC hw block */ @@ -1576,7 +1576,7 @@ static bool write_128b_132b_sst_payload_allocation_table( break; } } else { - union dpcd_rev dpcdRev; + union dpcd_rev dpcdRev = {0}; if (core_link_read_dpcd( link, @@ -2120,7 +2120,7 @@ static enum dc_status enable_link_dp_mst( struct pipe_ctx *pipe_ctx) { struct dc_link *link = pipe_ctx->stream->link; - unsigned char mstm_cntl; + unsigned char mstm_cntl = 0; /* sink signal type after MST branch is MST. Multiple MST sinks * share one link. Link DP PHY is enable or training only once. diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c index 289f5d133342..a01d0842bf8e 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c @@ -992,7 +992,7 @@ enum dp_link_encoding mst_decide_link_encoding_format(const struct dc_link *link static void read_dp_device_vendor_id(struct dc_link *link) { - struct dp_device_vendor_id dp_id; + struct dp_device_vendor_id dp_id = {0}; /* read IEEE branch device id */ core_link_read_dpcd( @@ -1087,7 +1087,7 @@ static void get_active_converter_info( } if (link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_11) { - uint8_t det_caps[16]; /* CTS 4.2.2.7 expects source to read Detailed Capabilities Info : 00080h-0008F.*/ + uint8_t det_caps[16] = {0}; /* CTS 4.2.2.7 expects source to read Detailed Capabilities Info : 00080h-0008F.*/ union dwnstream_port_caps_byte0 *port_caps = (union dwnstream_port_caps_byte0 *)det_caps; if (core_link_read_dpcd(link, DP_DOWNSTREAM_PORT_0, @@ -1172,7 +1172,7 @@ static void get_active_converter_info( set_dongle_type(link->ddc, link->dpcd_caps.dongle_type); { - struct dp_sink_hw_fw_revision dp_hw_fw_revision; + struct dp_sink_hw_fw_revision dp_hw_fw_revision = {0}; core_link_read_dpcd( link, @@ -1242,7 +1242,7 @@ static void apply_usbc_combo_phy_reset_wa(struct dc_link *link, bool dp_overwrite_extended_receiver_cap(struct dc_link *link) { - uint8_t dpcd_data[16]; + uint8_t dpcd_data[16] = {0}; uint32_t read_dpcd_retry_cnt = 3; enum dc_status status = DC_ERROR_UNEXPECTED; union dp_downstream_port_present ds_port = { 0 }; @@ -1408,7 +1408,7 @@ static bool get_usbc_cable_id(struct dc_link *link, union dp_cable_id *cable_id) static void retrieve_cable_id(struct dc_link *link) { - union dp_cable_id usbc_cable_id; + union dp_cable_id usbc_cable_id = {0}; link->dpcd_caps.cable_id.raw = 0; core_link_read_dpcd(link, DP_CABLE_ATTRIBUTES_UPDATED_BY_DPRX, @@ -1475,7 +1475,7 @@ static bool dpcd_read_sink_ext_caps(struct dc_link *link) enum dc_status dp_retrieve_lttpr_cap(struct dc_link *link) { - uint8_t lttpr_dpcd_data[8]; + uint8_t lttpr_dpcd_data[8] = {0}; enum dc_status status; bool is_lttpr_present; @@ -1931,8 +1931,8 @@ void detect_edp_sink_caps(struct dc_link *link) uint32_t entry; uint32_t link_rate_in_khz; enum dc_link_rate link_rate = LINK_RATE_UNKNOWN; - uint8_t backlight_adj_cap; - uint8_t general_edp_cap; + uint8_t backlight_adj_cap = 0; + uint8_t general_edp_cap = 0; retrieve_link_cap(link); link->dpcd_caps.edp_supported_link_rates_count = 0; diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c index ba69874be5a4..0fcf0b8530ac 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c @@ -120,7 +120,7 @@ bool dp_parse_link_loss_status( static bool handle_hpd_irq_psr_sink(struct dc_link *link) { - union dpcd_psr_configuration psr_configuration; + union dpcd_psr_configuration psr_configuration = {0}; if (!link->psr_settings.psr_feature_enabled) return false; @@ -186,9 +186,9 @@ static bool handle_hpd_irq_psr_sink(struct dc_link *link) static void handle_hpd_irq_replay_sink(struct dc_link *link) { - union dpcd_replay_configuration replay_configuration; + union dpcd_replay_configuration replay_configuration = {0}; /*AMD Replay version reuse DP_PSR_ERROR_STATUS for REPLAY_ERROR status.*/ - union psr_error_status replay_error_status; + union psr_error_status replay_error_status = {0}; if (!link->replay_settings.replay_feature_enabled) return; @@ -280,7 +280,7 @@ void dp_handle_link_loss(struct dc_link *link) static void read_dpcd204h_on_irq_hpd(struct dc_link *link, union hpd_irq_data *irq_data) { enum dc_status retval; - union lane_align_status_updated dpcd_lane_status_updated; + union lane_align_status_updated dpcd_lane_status_updated = {0}; retval = core_link_read_dpcd( link, @@ -320,7 +320,7 @@ enum dc_status dp_read_hpd_rx_irq_data( /* Read 14 bytes in a single read and then copy only the required fields. * This is more efficient than doing it in two separate AUX reads. */ - uint8_t tmp[DP_SINK_STATUS_ESI - DP_SINK_COUNT_ESI + 1]; + uint8_t tmp[DP_SINK_STATUS_ESI - DP_SINK_COUNT_ESI + 1] = {0}; retval = core_link_read_dpcd( link, diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c index 689c5fb44e86..ad9aca790dd7 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c @@ -321,8 +321,8 @@ bool edp_is_ilr_optimization_required(struct dc_link *link, struct dc_crtc_timing *crtc_timing) { struct dc_link_settings link_setting; - uint8_t link_bw_set; - uint8_t link_rate_set; + uint8_t link_bw_set = 0; + uint8_t link_rate_set = 0; uint32_t req_bw; union lane_count_set lane_count_set = {0}; diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_hpd.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_hpd.c index e3d729ab5b9f..caa617883f62 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_hpd.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_hpd.c @@ -35,7 +35,7 @@ bool link_get_hpd_state(struct dc_link *link) { - uint32_t state; + uint32_t state = 0; dal_gpio_lock_pin(link->hpd_gpio); dal_gpio_get_value(link->hpd_gpio, &state); -- 2.25.1