* [PATCH v1] drm/virtio: Fix return value for VIRTGPU_CONTEXT_PARAM_DEBUG_NAME
@ 2023-11-11 22:42 Dmitry Osipenko
2023-11-13 17:01 ` Gurchetan Singh
2023-11-15 1:44 ` Dmitry Osipenko
0 siblings, 2 replies; 3+ messages in thread
From: Dmitry Osipenko @ 2023-11-11 22:42 UTC (permalink / raw)
To: David Airlie, Gerd Hoffmann, Gurchetan Singh, Chia-I Wu
Cc: kernel, linux-kernel, dri-devel
The strncpy_from_user() returns number of copied bytes and not zero on
success. The non-zero return value of ioctl is treated as error. Return
zero on success instead of the number of copied bytes.
Fixes: 7add80126bce ("drm/uapi: add explicit virtgpu context debug name")
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
---
drivers/gpu/drm/virtio/virtgpu_ioctl.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 1e2042419f95..e4f76f315550 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -665,6 +665,7 @@ static int virtio_gpu_context_init_ioctl(struct drm_device *dev,
goto out_unlock;
vfpriv->explicit_debug_name = true;
+ ret = 0;
break;
default:
ret = -EINVAL;
--
2.41.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v1] drm/virtio: Fix return value for VIRTGPU_CONTEXT_PARAM_DEBUG_NAME
2023-11-11 22:42 [PATCH v1] drm/virtio: Fix return value for VIRTGPU_CONTEXT_PARAM_DEBUG_NAME Dmitry Osipenko
@ 2023-11-13 17:01 ` Gurchetan Singh
2023-11-15 1:44 ` Dmitry Osipenko
1 sibling, 0 replies; 3+ messages in thread
From: Gurchetan Singh @ 2023-11-13 17:01 UTC (permalink / raw)
To: Dmitry Osipenko
Cc: linux-kernel, dri-devel, Gerd Hoffmann, David Airlie, kernel
[-- Attachment #1: Type: text/plain, Size: 1219 bytes --]
On Sat, Nov 11, 2023 at 2:43 PM Dmitry Osipenko <
dmitry.osipenko@collabora.com> wrote:
> The strncpy_from_user() returns number of copied bytes and not zero on
> success. The non-zero return value of ioctl is treated as error. Return
> zero on success instead of the number of copied bytes.
>
> Fixes: 7add80126bce ("drm/uapi: add explicit virtgpu context debug name")
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
> ---
> drivers/gpu/drm/virtio/virtgpu_ioctl.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> index 1e2042419f95..e4f76f315550 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> @@ -665,6 +665,7 @@ static int virtio_gpu_context_init_ioctl(struct
> drm_device *dev,
> goto out_unlock;
>
> vfpriv->explicit_debug_name = true;
> + ret = 0;
> break;
> default:
> ret = -EINVAL;
> --
> 2.41.0
>
>
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v1] drm/virtio: Fix return value for VIRTGPU_CONTEXT_PARAM_DEBUG_NAME
2023-11-11 22:42 [PATCH v1] drm/virtio: Fix return value for VIRTGPU_CONTEXT_PARAM_DEBUG_NAME Dmitry Osipenko
2023-11-13 17:01 ` Gurchetan Singh
@ 2023-11-15 1:44 ` Dmitry Osipenko
1 sibling, 0 replies; 3+ messages in thread
From: Dmitry Osipenko @ 2023-11-15 1:44 UTC (permalink / raw)
To: David Airlie, Gerd Hoffmann, Gurchetan Singh, Chia-I Wu
Cc: kernel, linux-kernel, dri-devel
On 11/12/23 01:42, Dmitry Osipenko wrote:
> The strncpy_from_user() returns number of copied bytes and not zero on
> success. The non-zero return value of ioctl is treated as error. Return
> zero on success instead of the number of copied bytes.
>
> Fixes: 7add80126bce ("drm/uapi: add explicit virtgpu context debug name")
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
> ---
> drivers/gpu/drm/virtio/virtgpu_ioctl.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> index 1e2042419f95..e4f76f315550 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> @@ -665,6 +665,7 @@ static int virtio_gpu_context_init_ioctl(struct drm_device *dev,
> goto out_unlock;
>
> vfpriv->explicit_debug_name = true;
> + ret = 0;
> break;
> default:
> ret = -EINVAL;
Applied to misc-next
--
Best regards,
Dmitry
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-11-11 22:42 [PATCH v1] drm/virtio: Fix return value for VIRTGPU_CONTEXT_PARAM_DEBUG_NAME Dmitry Osipenko
2023-11-13 17:01 ` Gurchetan Singh
2023-11-15 1:44 ` Dmitry Osipenko
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