drm/powerplay: fix compilation warning

Nirmoy Das · alexdeucher · commit c0732ba1eeec · 2020-07-01T01:59:26.000-04:00
If (smu)-&gt;ppt_funcs-&gt;intf is not initialized then
smu_send_smc_msg(smu, SMU_MSG_ReadSerialNumBottom32, &amp;bottom32) and
smu_send_smc_msg(smu, SMU_MSG_ReadSerialNumTop32, &amp;top32) will not
touch bottom32 and top32.

Signed-off-by: Nirmoy Das &lt;nirmoy.das@amd.com&gt;
Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -2371,7 +2371,7 @@ static void arcturus_i2c_eeprom_control_fini(struct smu_context *smu, struct i2c
 static void arcturus_get_unique_id(struct smu_context *smu)
 {
 	struct amdgpu_device *adev = smu->adev;
-	uint32_t top32, bottom32, smu_version;
+	uint32_t top32 = 0, bottom32 = 0, smu_version;
 	uint64_t id;
 
 	if (smu_get_smc_version(smu, NULL, &smu_version)) {

Original file line number	Diff line number	Diff line change
`@@ -2371,7 +2371,7 @@ static void arcturus_i2c_eeprom_control_fini(struct smu_context *smu, struct i2c`
`2371`	`2371`	`static void arcturus_get_unique_id(struct smu_context *smu)`
`2372`	`2372`	`{`
`2373`	`2373`	`struct amdgpu_device *adev = smu->adev;`
`2374`		`- uint32_t top32, bottom32, smu_version;`
	`2374`	`+ uint32_t top32 = 0, bottom32 = 0, smu_version;`
`2375`	`2375`	`uint64_t id;`
`2376`	`2376`
`2377`	`2377`	`if (smu_get_smc_version(smu, NULL, &smu_version)) {`