linux-kernel - [PATCH] drm/amdgpu: Initialize value of r in amdgpu_fill

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Message-Id: <20220218185312.34464-1-jrdr.linux@gmail.com>
Date:   Sat, 19 Feb 2022 00:23:12 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     alexander.deucher@....com, christian.koenig@....com,
        Xinhui.Pan@....com, airlied@...ux.ie, daniel@...ll.ch,
        nathan@...nel.org, desaulniers@...gle.com, Felix.Kuehling@....com,
        Oak.Zeng@....com, nirmoy.das@....com, jonathan.kim@....com,
        kevin1.wang@....com, tzimmermann@...e.de, Philip.Yang@....com
Cc:     amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev,
        "Souptick Joarder (HPE)" <jrdr.linux@...il.com>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH] drm/amdgpu: Initialize value of r in amdgpu_fill_buffer()

From: "Souptick Joarder (HPE)" <jrdr.linux@...il.com>

Kernel test robot reported warning ->
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2129:2: warning: Undefined
or garbage value returned to caller [clang-analyzer-core.
uninitialized.UndefReturn]

Initialize r inside amdgpu_fill_buffer().

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Souptick Joarder (HPE) <jrdr.linux@...il.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 414a22dddc78..5fafb223177f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -2089,7 +2089,7 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
 	struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
 	struct dma_fence *fence = NULL;
 	struct amdgpu_res_cursor dst;
-	int r;
+	int r = 0;
 
 	if (!adev->mman.buffer_funcs_enabled) {
 		DRM_ERROR("Trying to clear memory with ring turned off.\n");
-- 
2.25.1