3 files changed, 8 insertions, 38 deletions

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c
index 4bd92fd782be..8d40ed0f0e83 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c
@@ -143,6 +143,10 @@ int atomctrl_initialize_mc_reg_table(
 	vram_info = (ATOM_VRAM_INFO_HEADER_V2_1 *)
 		smu_atom_get_data_table(hwmgr->adev,
 				GetIndexIntoMasterTable(DATA, VRAM_Info), &size, &frev, &crev);
+	if (!vram_info) {
+		pr_err("Could not retrieve the VramInfo table!");
+		return -EINVAL;
+	}
 
 	if (module_index >= vram_info->ucNumOfVRAMModule) {
 		pr_err("Invalid VramInfo table.");
@@ -180,6 +184,10 @@ int atomctrl_initialize_mc_reg_table_v2_2(
 	vram_info = (ATOM_VRAM_INFO_HEADER_V2_2 *)
 		smu_atom_get_data_table(hwmgr->adev,
 				GetIndexIntoMasterTable(DATA, VRAM_Info), &size, &frev, &crev);
+	if (!vram_info) {
+		pr_err("Could not retrieve the VramInfo table!");
+		return -EINVAL;
+	}
 
 	if (module_index >= vram_info->ucNumOfVRAMModule) {
 		pr_err("Invalid VramInfo table.");
diff --git a/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.c b/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.c
index 5a010cd38303..baf51cd82a35 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.c
@@ -46,42 +46,6 @@ static int smu7_set_smc_sram_address(struct pp_hwmgr *hwmgr, uint32_t smc_addr,
 }
 
 
-int smu7_copy_bytes_from_smc(struct pp_hwmgr *hwmgr, uint32_t smc_start_address, uint32_t *dest, uint32_t byte_count, uint32_t limit)
-{
-	uint32_t data;
-	uint32_t addr;
-	uint8_t *dest_byte;
-	uint8_t i, data_byte[4] = {0};
-	uint32_t *pdata = (uint32_t *)&data_byte;
-
-	PP_ASSERT_WITH_CODE((0 == (3 & smc_start_address)), "SMC address must be 4 byte aligned.", return -EINVAL);
-	PP_ASSERT_WITH_CODE((limit > (smc_start_address + byte_count)), "SMC address is beyond the SMC RAM area.", return -EINVAL);
-
-	addr = smc_start_address;
-
-	while (byte_count >= 4) {
-		smu7_read_smc_sram_dword(hwmgr, addr, &data, limit);
-
-		*dest = PP_SMC_TO_HOST_UL(data);
-
-		dest += 1;
-		byte_count -= 4;
-		addr += 4;
-	}
-
-	if (byte_count) {
-		smu7_read_smc_sram_dword(hwmgr, addr, &data, limit);
-		*pdata = PP_SMC_TO_HOST_UL(data);
-	/* Cast dest into byte type in dest_byte.  This way, we don't overflow if the allocated memory is not 4-byte aligned. */
-		dest_byte = (uint8_t *)dest;
-		for (i = 0; i < byte_count; i++)
-			dest_byte[i] = data_byte[i];
-	}
-
-	return 0;
-}
-
-
 int smu7_copy_bytes_to_smc(struct pp_hwmgr *hwmgr, uint32_t smc_start_address,
 				const uint8_t *src, uint32_t byte_count, uint32_t limit)
 {
diff --git a/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.h b/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.h
index e7303dc8c260..63e428ceaee4 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.h
+++ b/drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.h
@@ -53,8 +53,6 @@ struct smu7_smumgr {
 };
 
 
-int smu7_copy_bytes_from_smc(struct pp_hwmgr *hwmgr, uint32_t smc_start_address,
-				uint32_t *dest, uint32_t byte_count, uint32_t limit);
 int smu7_copy_bytes_to_smc(struct pp_hwmgr *hwmgr, uint32_t smc_start_address,
 			const uint8_t *src, uint32_t byte_count, uint32_t limit);
 int smu7_program_jump_on_start(struct pp_hwmgr *hwmgr);