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From:   trix@redhat.com
To:     alexander.deucher@amd.com, christian.koenig@amd.com,
        airlied@linux.ie, daniel@ffwll.ch, evan.quan@amd.com,
        nirmoy.das@amd.com, kevin1.wang@amd.com, ray.huang@amd.com,
        darren.powell@amd.com
Cc:     amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
        linux-kernel@vger.kernel.org, Tom Rix <trix@redhat.com>
Subject: [PATCH] drm/amd/pm: initialize variable
Date:   Fri, 30 Apr 2021 10:16:54 -0700
Message-Id: <20210430171654.3326745-1-trix@redhat.com>
MIME-Version: 1.0
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From: Tom Rix <trix@redhat.com>

Static analysis reports this problem

amdgpu_pm.c:478:16: warning: The right operand of '<' is a garbage value
  for (i = 0; i < data.nums; i++) {
                ^ ~~~~~~~~~

In some cases data is not set.  Initialize to 0 and flag not setting
data as an error with the existing check.

Signed-off-by: Tom Rix <trix@redhat.com>
---
 drivers/gpu/drm/amd/pm/amdgpu_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 4e459ef632ef..9a54066ec0af 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -451,7 +451,7 @@ static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
-	struct pp_states_info data;
+	struct pp_states_info data = {0};
 	enum amd_pm_state_type pm = 0;
 	int i = 0, ret = 0;
 
-- 
2.26.3