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drm/amdgpu: fix uninit-value in arcturus_log_thermal_throttling_event()

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when function arcturus_get_smu_metrics_data() call failed,
it will cause the variable "throttler_status" isn't initialized before use.

warning:
powerplay/arcturus_ppt.c:2268:24: warning: ‘throttler_status’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 2268 |   if (throttler_status & logging_label[throttler_idx].feature_mask) {

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kevin Wang 2020-08-06 23:41:47 +08:00 • committed by Alex Deucher
parent ba4e049e63
commit e1a84641d4
1 changed files with 6 additions and 3 deletions
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9
drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
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@ -2208,14 +2208,17 @@ static const struct throttling_logging_label {
};
static void arcturus_log_thermal_throttling_event(struct smu_context *smu)
{
int ret;
int throttler_idx, throtting_events = 0, buf_idx = 0;
struct amdgpu_device *adev = smu->adev;
uint32_t throttler_status;
char log_buf[256];
arcturus_get_smu_metrics_data(smu,
METRICS_THROTTLER_STATUS,
&throttler_status);
ret = arcturus_get_smu_metrics_data(smu,
METRICS_THROTTLER_STATUS,
&throttler_status);
if (ret)
return;
memset(log_buf, 0, sizeof(log_buf));
for (throttler_idx = 0; throttler_idx < ARRAY_SIZE(logging_label);