From: Bernard Zhao <bernard@vivo.com>
To: "Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>, "Monk Liu" <Monk.Liu@amd.com>,
"Hawking Zhang" <Hawking.Zhang@amd.com>,
"Yintian Tao" <yttao@amd.com>, "Dennis Li" <Dennis.Li@amd.com>,
"Wenhui Sheng" <Wenhui.Sheng@amd.com>,
"chen gong" <curry.gong@amd.com>,
"Bokun Zhang" <Bokun.Zhang@amd.com>,
"Stanley.Yang" <Stanley.Yang@amd.com>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Cc: opensource.kernel@vivo.com, Bernard Zhao <bernard@vivo.com>
Subject: [PATCH] amd/amdgpu: use kmalloc_array to replace kmalloc with multiply
Date: Tue, 17 Nov 2020 18:55:01 -0800 [thread overview]
Message-ID: <20201118025503.102699-1-bernard@vivo.com> (raw)
Fix check_patch.pl warning:
WARNING: Prefer kmalloc_array over kmalloc with multiply
+bps = kmalloc(align_space * sizeof((*data)->bps), GFP_KERNEL);
WARNING: Prefer kmalloc_array over kmalloc with multiply
+bps_bo = kmalloc(align_space * sizeof((*data)->bps_bo),
GFP_KERNEL);
kmalloc_array has multiply overflow check, which will be safer.
Signed-off-by: Bernard Zhao <bernard@vivo.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index d0aea5e39531..f2a0851c804f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -280,8 +280,8 @@ static int amdgpu_virt_init_ras_err_handler_data(struct amdgpu_device *adev)
if (!*data)
return -ENOMEM;
- bps = kmalloc(align_space * sizeof((*data)->bps), GFP_KERNEL);
- bps_bo = kmalloc(align_space * sizeof((*data)->bps_bo), GFP_KERNEL);
+ bps = kmalloc_array(align_space, sizeof((*data)->bps), GFP_KERNEL);
+ bps_bo = kmalloc_array(align_space, sizeof((*data)->bps_bo), GFP_KERNEL);
if (!bps || !bps_bo) {
kfree(bps);
--
2.29.0
next reply other threads:[~2020-11-18 2:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-18 2:55 Bernard Zhao [this message]
2020-11-18 8:17 ` Christian König
2020-11-19 21:56 ` Alex Deucher
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