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

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Message-Id: <20180913131847.953065134@linuxfoundation.org>
Date:   Thu, 13 Sep 2018 15:31:49 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Evan Quan <evan.quan@....com>,
        Huang Rui <ray.huang@....com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 4.18 160/197] drm/amd/powerplay: fixed uninitialized value

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

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

From: Evan Quan <evan.quan@....com>

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@....com>
Acked-by: Huang Rui <ray.huang@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 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.