"off by on"
or
"off by one"
?
M
>-----Original Message-----
>From: dri-devel <dri-devel-boun...@lists.freedesktop.org> On Behalf Of Dan
>Carpenter
>Sent: Wednesday, May 20, 2020 9:08 AM
>To: Alex Deucher <alexander.deuc...@amd.com>; Kevin Wang
><kevin1.w...@amd.com>
>Cc: David Airlie <airl...@linux.ie>; kernel-janit...@vger.kernel.org; linux-
>ker...@vger.kernel.org; amd-gfx@lists.freedesktop.org; Hawking Zhang
><hawking.zh...@amd.com>; Rui Huang <ray.hu...@amd.com>; dri-
>de...@lists.freedesktop.org; Evan Quan <evan.q...@amd.com>; Kenneth
>Feng <kenneth.f...@amd.com>; Christian König
><christian.koe...@amd.com>; Yintian Tao <yt...@amd.com>
>Subject: [PATCH v2] drm/amdgpu: off by on in
>amdgpu_device_attr_create_groups() error handling
>
>This loop in the error handling code should start a "i - 1" and end at
>"i == 0". Currently it starts a "i" and ends at "i == 1". The result
>is that it removes one attribute that wasn't created yet, and leaks the
>zeroeth attribute.
>
>Fixes: 4e01847c38f7 ("drm/amdgpu: optimize amdgpu device attribute code")
>Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
>---
>v2: style change
>
> drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 3 +--
> 1 files changed, 1 insertions(+), 2 deletions(-)
>
>diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
>b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
>index b75362bf0742..e809534fabd4 100644
>--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
>+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
>@@ -1942,9 +1942,8 @@ static int amdgpu_device_attr_create_groups(struct
>amdgpu_device *adev,
> return 0;
>
> failed:
>- for (; i > 0; i--) {
>+ while (i--)
> amdgpu_device_attr_remove(adev, &attrs[i]);
>- }
>
> return ret;
> }
>_______________________________________________
>dri-devel mailing list
>dri-de...@lists.freedesktop.org
>https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
