diff options
Diffstat (limited to 'extras/mini-os/netfront.c')
| -rw-r--r-- | extras/mini-os/netfront.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/extras/mini-os/netfront.c b/extras/mini-os/netfront.c index 4feb0cc4a0..00f159c332 100644 --- a/extras/mini-os/netfront.c +++ b/extras/mini-os/netfront.c @@ -259,7 +259,8 @@ void netfront_select_handler(evtchn_port_t port, struct pt_regs *regs, void *dat network_tx_buf_gc(dev); local_irq_restore(flags); - files[fd].read = 1; + if (fd != -1) + files[fd].read = 1; wake_up(&netfront_queue); } #endif @@ -323,6 +324,9 @@ struct netfront_dev *init_netfront(char *nodename, void (*thenetif_rx)(unsigned dev = malloc(sizeof(*dev)); memset(dev, 0, sizeof(*dev)); dev->nodename = strdup(nodename); +#ifdef HAVE_LIBC + dev->fd = -1; +#endif printk("net TX ring size %d\n", NET_TX_RING_SIZE); printk("net RX ring size %d\n", NET_RX_RING_SIZE); @@ -599,7 +603,7 @@ ssize_t netfront_receive(struct netfront_dev *dev, unsigned char *data, size_t l local_irq_save(flags); network_rx(dev); - if (!dev->rlen) + if (!dev->rlen && fd != -1) /* No data for us, make select stop returning */ files[fd].read = 0; /* Before re-enabling the interrupts, in case a packet just arrived in the |