Yunjian Wang 0ad31889c4 vhost_net: fix ubuf refcount incorrectly when sendmsg fails ... [ Upstream commit 01e31bea7e622f1890c274f4aaaaf8bccd296aa5 ] Currently the vhost_zerocopy_callback() maybe be called to decrease the refcount when sendmsg fails in tun. The error handling in vhost handle_tx_zerocopy() will try to decrease the same refcount again. This is wrong. To fix this issue, we only call vhost_net_ubuf_put() when vq->heads[nvq->desc].len == VHOST_DMA_IN_PROGRESS. Fixes: bab632d69e ("vhost: vhost TX zero-copy support") Signed-off-by: Yunjian Wang <wangyunjian@huawei.com> Acked-by: Willem de Bruijn <willemb@google.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/1609207308-20544-1-git-send-email-wangyunjian@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-01-12 20:18:13 +01:00
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Kconfig	vhost_vdpa: implement IRQ offloading in vhost_vdpa	2020-08-05 11:08:42 -04:00
Makefile	vhost: introduce vDPA-based backend	2020-04-02 10:41:40 -04:00
iotlb.c	vhost: Fix documentation	2020-09-24 05:54:36 -04:00
net.c	vhost_net: fix ubuf refcount incorrectly when sendmsg fails	2021-01-12 20:18:13 +01:00
scsi.c	vhost scsi: fix error return code in vhost_scsi_set_endpoint()	2020-12-30 11:54:00 +01:00
test.c	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
test.h	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
vdpa.c	vhost_vdpa: return -EFAULT if copy_to_user() fails	2020-12-02 04:36:40 -05:00
vhost.c	vhost: add helper to check if a vq has been setup	2020-11-15 17:30:54 -05:00
vhost.h	vhost: add helper to check if a vq has been setup	2020-11-15 17:30:54 -05:00
vringh.c	vringh: fix vringh_iov_push_*() documentation	2020-11-25 04:22:48 -05:00
vsock.c	vhost: allow device that does not depend on vhost worker	2020-06-04 15:36:51 -04:00