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| author | Dmitry Shmidt <dimitrysh@google.com> | 2016-11-15 17:02:38 -0800 |
|---|---|---|
| committer | Dmitry Shmidt <dimitrysh@google.com> | 2016-11-15 17:02:38 -0800 |
| commit | 324e88de4aba3b6d4e0453fb2adb094e4a53754c (patch) | |
| tree | f961e8c1eb2bcdefec062e0b86d4b5f307caee1e /drivers/char/virtio_console.c | |
| parent | 93e3336909d88c3afca7ccdc8b009c435f37a70a (diff) | |
| parent | 4dab3e4df9944782cb3c229bd37f5ea8b5f52bac (diff) | |
Merge tag 'v4.4.32' into android-4.4.y
This is the 4.4.32 stable release
Change-Id: I5028402eadfcf055ac44a5e67abc6da75b2068b3
Diffstat (limited to 'drivers/char/virtio_console.c')
| -rw-r--r-- | drivers/char/virtio_console.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index d2406fe25533..090183f812be 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -1533,19 +1533,29 @@ static void remove_port_data(struct port *port) spin_lock_irq(&port->inbuf_lock); /* Remove unused data this port might have received. */ discard_port_data(port); + spin_unlock_irq(&port->inbuf_lock); /* Remove buffers we queued up for the Host to send us data in. */ - while ((buf = virtqueue_detach_unused_buf(port->in_vq))) - free_buf(buf, true); - spin_unlock_irq(&port->inbuf_lock); + do { + spin_lock_irq(&port->inbuf_lock); + buf = virtqueue_detach_unused_buf(port->in_vq); + spin_unlock_irq(&port->inbuf_lock); + if (buf) + free_buf(buf, true); + } while (buf); spin_lock_irq(&port->outvq_lock); reclaim_consumed_buffers(port); + spin_unlock_irq(&port->outvq_lock); /* Free pending buffers from the out-queue. */ - while ((buf = virtqueue_detach_unused_buf(port->out_vq))) - free_buf(buf, true); - spin_unlock_irq(&port->outvq_lock); + do { + spin_lock_irq(&port->outvq_lock); + buf = virtqueue_detach_unused_buf(port->out_vq); + spin_unlock_irq(&port->outvq_lock); + if (buf) + free_buf(buf, true); + } while (buf); } /* |