[v2] net/virtio-user: fix run close(0) and close callfd
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Commit Message
From: Jiawei Zhu <zhujiawei12@huawei.com>
When i < VIRTIO_MAX_VIRTQUEUES and j == i,
dev->callfds[i] and dev->kickfds[i] are default 0.
So it will close(0), close the standard input (stdin).
And when the code fails in kickfd creation,
it will leaves one callfd not closed.
Fixes: e6e7ad8b3024 ("net/virtio-user: move eventfd open/close into init/uninit")
Cc: stable@dpdk.org:
Signed-off-by: Jiawei Zhu <zhujiawei12@huawei.com>
---
v2:
* Add close callfd when fail in kickfd creation before break.
---
---
drivers/net/virtio/virtio_user/virtio_user_dev.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Comments
Hi Jiawei,
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Jiawei Zhu
> Sent: Saturday, December 12, 2020 12:53 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v2] net/virtio-user: fix run close(0) and close
> callfd
>
> From: Jiawei Zhu <zhujiawei12@huawei.com>
>
> When i < VIRTIO_MAX_VIRTQUEUES and j == i,
> dev->callfds[i] and dev->kickfds[i] are default 0.
> So it will close(0), close the standard input (stdin).
> And when the code fails in kickfd creation,
> it will leaves one callfd not closed.
>
> Fixes: e6e7ad8b3024 ("net/virtio-user: move eventfd open/close into
> init/uninit")
> Cc: stable@dpdk.org:
>
> Signed-off-by: Jiawei Zhu <zhujiawei12@huawei.com>
> ---
> v2:
> * Add close callfd when fail in kickfd creation before break.
> ---
> ---
> drivers/net/virtio/virtio_user/virtio_user_dev.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c
> b/drivers/net/virtio/virtio_user/virtio_user_dev.c
> index 053f026..e1cbad0 100644
> --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
> +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
> @@ -276,6 +276,7 @@ int virtio_user_stop_device(struct virtio_user_dev
> *dev)
> }
> kickfd = eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK);
> if (kickfd < 0) {
> + close(callfd);
> PMD_DRV_LOG(ERR, "kickfd error, %s", strerror(errno));
> break;
> }
> @@ -284,7 +285,7 @@ int virtio_user_stop_device(struct virtio_user_dev
> *dev)
> }
>
> if (i < VIRTIO_MAX_VIRTQUEUES) {
> - for (j = 0; j <= i; ++j) {
> + for (j = 0; j < i; ++j) {
> close(dev->callfds[j]);
> close(dev->kickfds[j]);
> }
> --
> 1.8.3.1
Because you've sent duplicate ones, I will take this as the correct one.
Please don't send so many duplicate patches next time and don't send HTML 😊.
I'll help you clean up on patchwork, and thanks for your patch!
For this patch:
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
@@ -276,6 +276,7 @@ int virtio_user_stop_device(struct virtio_user_dev *dev)
}
kickfd = eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK);
if (kickfd < 0) {
+ close(callfd);
PMD_DRV_LOG(ERR, "kickfd error, %s", strerror(errno));
break;
}
@@ -284,7 +285,7 @@ int virtio_user_stop_device(struct virtio_user_dev *dev)
}
if (i < VIRTIO_MAX_VIRTQUEUES) {
- for (j = 0; j <= i; ++j) {
+ for (j = 0; j < i; ++j) {
close(dev->callfds[j]);
close(dev->kickfds[j]);
}