drm/amd/display: Remove redundant checks for ctx->dc_bios

The null checks for ctx->dc_bios are redundant as it was 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@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c

@@ -772,7 +772,7 @@ void rn_clk_mgr_construct(
 		status = pp_smu->rn_funcs.get_dpm_clock_table(&pp_smu->rn_funcs.pp_smu, &clock_table);
 
 		if (status == PP_SMU_RESULT_OK &&
-		    ctx->dc_bios && ctx->dc_bios->integrated_info) {
+		    ctx->dc_bios->integrated_info) {
 			rn_clk_mgr_helper_populate_bw_params (clk_mgr->base.bw_params, &clock_table, ctx->dc_bios->integrated_info);
 			/* treat memory config as single channel if memory is asymmetrics. */
 			if (ctx->dc->config.is_asymmetric_memory)

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c

@@ -731,7 +731,7 @@ void vg_clk_mgr_construct(
 	clk_mgr->base.base.bw_params = &vg_bw_params;
 
 	vg_get_dpm_table_from_smu(&clk_mgr->base, &smu_dpm_clks);
-	if (ctx->dc_bios && ctx->dc_bios->integrated_info) {
+	if (ctx->dc_bios->integrated_info) {
 		vg_clk_mgr_helper_populate_bw_params(
 				&clk_mgr->base,
 				ctx->dc_bios->integrated_info,

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c

@@ -785,7 +785,7 @@ void dcn31_clk_mgr_construct(
 					   i, smu_dpm_clks.dpm_clks->DfPstateTable[i].MemClk,
 					   i, smu_dpm_clks.dpm_clks->DfPstateTable[i].Voltage);
 		}
-		if (ctx->dc_bios && ctx->dc_bios->integrated_info) {
+		if (ctx->dc_bios->integrated_info) {
 			dcn31_clk_mgr_helper_populate_bw_params(
 					&clk_mgr->base,
 					ctx->dc_bios->integrated_info,

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c

@@ -896,7 +896,7 @@ void dcn314_clk_mgr_construct(
 					   i, smu_dpm_clks.dpm_clks->DfPstateTable[i].Voltage);
 		}
 
-		if (ctx->dc_bios && ctx->dc_bios->integrated_info && ctx->dc->config.use_default_clock_table == false) {
+		if (ctx->dc_bios->integrated_info && ctx->dc->config.use_default_clock_table == false) {
 			dcn314_clk_mgr_helper_populate_bw_params(
 					&clk_mgr->base,
 					ctx->dc_bios->integrated_info,

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c

@@ -712,7 +712,7 @@ void dcn315_clk_mgr_construct(
 					   i, smu_dpm_clks.dpm_clks->DfPstateTable[i].Voltage);
 		}
 
-		if (ctx->dc_bios && ctx->dc_bios->integrated_info) {
+		if (ctx->dc_bios->integrated_info) {
 			dcn315_clk_mgr_helper_populate_bw_params(
 					&clk_mgr->base,
 					ctx->dc_bios->integrated_info,

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c

@@ -652,7 +652,7 @@ void dcn316_clk_mgr_construct(
 	if (clk_mgr->base.base.ctx->dc->debug.pstate_enabled) {
 		dcn316_get_dpm_table_from_smu(&clk_mgr->base, &smu_dpm_clks);
 
-		if (ctx->dc_bios && ctx->dc_bios->integrated_info) {
+		if (ctx->dc_bios->integrated_info) {
 			dcn316_clk_mgr_helper_populate_bw_params(
 					&clk_mgr->base,
 					ctx->dc_bios->integrated_info,

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c

@@ -1182,7 +1182,7 @@ void dcn35_clk_mgr_construct(
 					   i, smu_dpm_clks.dpm_clks->MemPstateTable[i].Voltage);
 		}
 
-		if (ctx->dc_bios && ctx->dc_bios->integrated_info && ctx->dc->config.use_default_clock_table == false) {
+		if (ctx->dc_bios->integrated_info && ctx->dc->config.use_default_clock_table == false) {
 			dcn35_clk_mgr_helper_populate_bw_params(
 					&clk_mgr->base,
 					ctx->dc_bios->integrated_info,