linux-kernel - [PATCH] drm/amdgpu: initialize r variable into amdgpu_cs

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Date:   Tue, 20 Sep 2022 14:22:14 +0200
From:   Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
To:     tommaso.merciai@...rulasolutions.com
Cc:     linuxfancy@...glegroups.com, linux-amarula@...rulasolutions.com,
        sudipm.mukherjee@...il.com,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>,
        Andrey Grodzovsky <andrey.grodzovsky@....com>,
        Luben Tuikov <luben.tuikov@....com>,
        Philip Yang <Philip.Yang@....com>,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: [PATCH] drm/amdgpu: initialize r variable into amdgpu_cs_submit function

The builds of arm64 allmodconfig with clang failed to build
next-20220920 with the following result:

1190:3: error: variable 'r' is uninitialized when used here [-Werror,-Wuninitialized]
note: initialize the variable 'r' to silence this warning

This fix compilation error

Signed-off-by: Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 58088c663125..efa3dc9b69fd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1168,7 +1168,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 	struct amdgpu_bo_list_entry *e;
 	struct amdgpu_job *job;
 	uint64_t seq;
-	int r;
+	int r = 0;
 
 	job = p->job;
 	p->job = NULL;
-- 
2.25.1