[PATCH 4.18 160/197] drm/amd/powerplay: fixed uninitialized value

From: Greg Kroah-Hartman
Date: Thu Sep 13 2018 - 10:02:51 EST


4.18-stable review patch. If anyone has any objections, please let me know.

------------------

From: Evan Quan <evan.quan@xxxxxxx>

commit 1ce0688f3f6a9e9d34ae66bf779d54855def7bec upstream.

The 'result' is not initialized correctly. It causes the API
return an error code even on success.

Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
Acked-by: Huang Rui <ray.huang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
@@ -490,7 +490,7 @@ static int vega12_get_number_dpm_level(s
static int vega12_get_dpm_frequency_by_index(struct pp_hwmgr *hwmgr,
PPCLK_e clkID, uint32_t index, uint32_t *clock)
{
- int result;
+ int result = 0;

/*
*SMU expects the Clock ID to be in the top 16 bits.