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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: Only set client->iso_context if allocation was successful.
  ieee1394: fix to ether1394_tx in ether1394.c
  firewire: fix hang after card ejection
hifive-unleashed-5.1
Linus Torvalds 2007-06-20 15:39:50 -07:00
parent b3f4256fe0 24315c5e6f
commit d025d7858f
3 changed files with 27 additions and 15 deletions
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19
drivers/firewire/fw-cdev.c
View File

@ -640,6 +640,7 @@ iso_callback(struct fw_iso_context *context, u32 cycle,
static int ioctl_create_iso_context(struct client *client, void *buffer)
{
struct fw_cdev_create_iso_context *request = buffer;
struct fw_iso_context *context;
if (request->channel > 63)
return -EINVAL;
@ -661,15 +662,17 @@ static int ioctl_create_iso_context(struct client *client, void *buffer)
return -EINVAL;
}
context = fw_iso_context_create(client->device->card,
request->type,
request->channel,
request->speed,
request->header_size,
iso_callback, client);
if (IS_ERR(context))
return PTR_ERR(context);
client->iso_closure = request->closure;
client->iso_context = fw_iso_context_create(client->device->card,
request->type,
request->channel,
request->speed,
request->header_size,
iso_callback, client);
if (IS_ERR(client->iso_context))
return PTR_ERR(client->iso_context);
client->iso_context = context;
/* We only support one context at this time. */
request->handle = 0;

2
drivers/firewire/fw-ohci.c
View File

@ -1001,7 +1001,7 @@ static irqreturn_t irq_handler(int irq, void *data)
event = reg_read(ohci, OHCI1394_IntEventClear);
if (!event)
if (!event || !~event)
return IRQ_NONE;
reg_write(ohci, OHCI1394_IntEventClear, event);

21
drivers/ieee1394/eth1394.c
View File

@ -1565,7 +1565,7 @@ static void ether1394_complete_cb(void *__ptask)
/* Transmit a packet (called by kernel) */
static int ether1394_tx(struct sk_buff *skb, struct net_device *dev)
{
struct eth1394hdr *eth;
struct eth1394hdr hdr_buf;
struct eth1394_priv *priv = netdev_priv(dev);
__be16 proto;
unsigned long flags;
@ -1595,16 +1595,17 @@ static int ether1394_tx(struct sk_buff *skb, struct net_device *dev)
if (!skb)
goto fail;
/* Get rid of the fake eth1394 header, but save a pointer */
eth = (struct eth1394hdr *)skb->data;
/* Get rid of the fake eth1394 header, but first make a copy.
* We might need to rebuild the header on tx failure. */
memcpy(&hdr_buf, skb->data, sizeof(hdr_buf));
skb_pull(skb, ETH1394_HLEN);
proto = eth->h_proto;
proto = hdr_buf.h_proto;
dg_size = skb->len;
/* Set the transmission type for the packet. ARP packets and IP
* broadcast packets are sent via GASP. */
if (memcmp(eth->h_dest, dev->broadcast, ETH1394_ALEN) == 0 ||
if (memcmp(hdr_buf.h_dest, dev->broadcast, ETH1394_ALEN) == 0 ||
proto == htons(ETH_P_ARP) ||
(proto == htons(ETH_P_IP) &&
IN_MULTICAST(ntohl(ip_hdr(skb)->daddr)))) {
@ -1616,7 +1617,7 @@ static int ether1394_tx(struct sk_buff *skb, struct net_device *dev)
if (max_payload < dg_size + hdr_type_len[ETH1394_HDR_LF_UF])
priv->bc_dgl++;
} else {
__be64 guid = get_unaligned((u64 *)eth->h_dest);
__be64 guid = get_unaligned((u64 *)hdr_buf.h_dest);
node = eth1394_find_node_guid(&priv->ip_node_list,
be64_to_cpu(guid));
@ -1673,6 +1674,14 @@ static int ether1394_tx(struct sk_buff *skb, struct net_device *dev)
if (dest_node == (LOCAL_BUS | ALL_NODES))
goto fail;
/* At this point we want to restore the packet. When we return
* here with NETDEV_TX_BUSY we will get another entrance in this
* routine with the same skb and we need it to look the same.
* So we pull 4 more bytes, then build the header again. */
skb_pull(skb, 4);
ether1394_header(skb, dev, ntohs(hdr_buf.h_proto),
hdr_buf.h_dest, NULL, 0);
/* Most failures of ether1394_send_packet are recoverable. */
netif_stop_queue(dev);
priv->wake_node = dest_node;