diff options
-rw-r--r-- | drivers/acpi/event.c | 6 | ||||
-rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 16 | ||||
-rw-r--r-- | drivers/scsi/scsi_transport_iscsi.c | 12 | ||||
-rw-r--r-- | drivers/video/uvesafb.c | 5 | ||||
-rw-r--r-- | fs/dquot.c | 5 | ||||
-rw-r--r-- | lib/kobject_uevent.c | 3 | ||||
-rw-r--r-- | net/netlink/af_netlink.c | 8 | ||||
-rw-r--r-- | net/wimax/op-msg.c | 9 | ||||
-rw-r--r-- | net/wimax/stack.c | 12 |
9 files changed, 28 insertions, 48 deletions
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index 0c24bd4..aeb7e5f 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -235,11 +235,7 @@ int acpi_bus_generate_netlink_event(const char *device_class, return result; } - result = - genlmsg_multicast(skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC); - if (result) - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Failed to send a Genetlink message!\n")); + genlmsg_multicast(skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC); return 0; } diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 5f77417..3ee4eb4 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -533,12 +533,8 @@ fc_host_post_event(struct Scsi_Host *shost, u32 event_number, event->event_code = event_code; event->event_data = event_data; - err = nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, - GFP_KERNEL); - if (err && (err != -ESRCH)) /* filter no recipient errors */ - /* nlmsg_multicast already kfree_skb'd */ - goto send_fail; - + nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, + GFP_KERNEL); return; send_fail_skb: @@ -607,12 +603,8 @@ fc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number, event->event_code = FCH_EVT_VENDOR_UNIQUE; memcpy(&event->event_data, data_buf, data_len); - err = nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, - GFP_KERNEL); - if (err && (err != -ESRCH)) /* filter no recipient errors */ - /* nlmsg_multicast already kfree_skb'd */ - goto send_vendor_fail; - + nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, + GFP_KERNEL); return; send_vendor_fail_skb: diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 75c9297..2adfab8 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -966,15 +966,7 @@ iscsi_if_transport_lookup(struct iscsi_transport *tt) static int iscsi_broadcast_skb(struct sk_buff *skb, gfp_t gfp) { - int rc; - - rc = netlink_broadcast(nls, skb, 0, 1, gfp); - if (rc < 0) { - printk(KERN_ERR "iscsi: can not broadcast skb (%d)\n", rc); - return rc; - } - - return 0; + return netlink_broadcast(nls, skb, 0, 1, gfp); } static int @@ -1207,7 +1199,7 @@ int iscsi_session_event(struct iscsi_cls_session *session, * the user and when the daemon is restarted it will handle it */ rc = iscsi_broadcast_skb(skb, GFP_KERNEL); - if (rc < 0) + if (rc == -ESRCH) iscsi_cls_session_printk(KERN_ERR, session, "Cannot notify userspace of session " "event %u. Check iscsi daemon\n", diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c index 6c2d37f..74ae758 100644 --- a/drivers/video/uvesafb.c +++ b/drivers/video/uvesafb.c @@ -204,8 +204,11 @@ static int uvesafb_exec(struct uvesafb_ktask *task) } else { v86d_started = 1; err = cn_netlink_send(m, 0, gfp_any()); + if (err == -ENOBUFS) + err = 0; } - } + } else if (err == -ENOBUFS) + err = 0; if (!err && !(task->t.flags & TF_EXIT)) err = !wait_for_completion_timeout(task->done, @@ -1057,10 +1057,7 @@ static void send_warning(const struct dquot *dquot, const char warntype) goto attr_err_out; genlmsg_end(skb, msg_head); - ret = genlmsg_multicast(skb, 0, quota_genl_family.id, GFP_NOFS); - if (ret < 0 && ret != -ESRCH) - printk(KERN_ERR - "VFS: Failed to send notification message: %d\n", ret); + genlmsg_multicast(skb, 0, quota_genl_family.id, GFP_NOFS); return; attr_err_out: printk(KERN_ERR "VFS: Not enough space to compose quota message!\n"); diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 318328d..3813102 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -227,6 +227,9 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, NETLINK_CB(skb).dst_group = 1; retval = netlink_broadcast(uevent_sock, skb, 0, 1, GFP_KERNEL); + /* ENOBUFS should be handled in userspace */ + if (retval == -ENOBUFS) + retval = 0; } else retval = -ENOMEM; } diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 9eb895c..6ee69c2 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -950,6 +950,7 @@ struct netlink_broadcast_data { u32 pid; u32 group; int failure; + int delivery_failure; int congested; int delivered; gfp_t allocation; @@ -999,6 +1000,7 @@ static inline int do_one_broadcast(struct sock *sk, p->skb2 = NULL; } else if ((val = netlink_broadcast_deliver(sk, p->skb2)) < 0) { netlink_overrun(sk); + p->delivery_failure = 1; } else { p->congested |= val; p->delivered = 1; @@ -1025,6 +1027,7 @@ int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid, info.pid = pid; info.group = group; info.failure = 0; + info.delivery_failure = 0; info.congested = 0; info.delivered = 0; info.allocation = allocation; @@ -1045,13 +1048,14 @@ int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid, if (info.skb2) kfree_skb(info.skb2); + if (info.delivery_failure || info.failure) + return -ENOBUFS; + if (info.delivered) { if (info.congested && (allocation & __GFP_WAIT)) yield(); return 0; } - if (info.failure) - return -ENOBUFS; return -ESRCH; } EXPORT_SYMBOL(netlink_broadcast); diff --git a/net/wimax/op-msg.c b/net/wimax/op-msg.c index cb3b4ad..5d149c1 100644 --- a/net/wimax/op-msg.c +++ b/net/wimax/op-msg.c @@ -258,7 +258,6 @@ EXPORT_SYMBOL_GPL(wimax_msg_len); */ int wimax_msg_send(struct wimax_dev *wimax_dev, struct sk_buff *skb) { - int result; struct device *dev = wimax_dev->net_dev->dev.parent; void *msg = skb->data; size_t size = skb->len; @@ -266,11 +265,9 @@ int wimax_msg_send(struct wimax_dev *wimax_dev, struct sk_buff *skb) d_printf(1, dev, "CTX: wimax msg, %zu bytes\n", size); d_dump(2, dev, msg, size); - result = genlmsg_multicast(skb, 0, wimax_gnl_mcg.id, GFP_KERNEL); - d_printf(1, dev, "CTX: genl multicast result %d\n", result); - if (result == -ESRCH) /* Nobody connected, ignore it */ - result = 0; /* btw, the skb is freed already */ - return result; + genlmsg_multicast(skb, 0, wimax_gnl_mcg.id, GFP_KERNEL); + d_printf(1, dev, "CTX: genl multicast done\n"); + return 0; } EXPORT_SYMBOL_GPL(wimax_msg_send); diff --git a/net/wimax/stack.c b/net/wimax/stack.c index 3869c03..a0ee76b 100644 --- a/net/wimax/stack.c +++ b/net/wimax/stack.c @@ -163,16 +163,12 @@ int wimax_gnl_re_state_change_send( struct device *dev = wimax_dev_to_dev(wimax_dev); d_fnstart(3, dev, "(wimax_dev %p report_skb %p)\n", wimax_dev, report_skb); - if (report_skb == NULL) + if (report_skb == NULL) { + result = -ENOMEM; goto out; - genlmsg_end(report_skb, header); - result = genlmsg_multicast(report_skb, 0, wimax_gnl_mcg.id, GFP_KERNEL); - if (result == -ESRCH) /* Nobody connected, ignore it */ - result = 0; /* btw, the skb is freed already */ - if (result < 0) { - dev_err(dev, "RE_STCH: Error sending: %d\n", result); - nlmsg_free(report_skb); } + genlmsg_end(report_skb, header); + genlmsg_multicast(report_skb, 0, wimax_gnl_mcg.id, GFP_KERNEL); out: d_fnend(3, dev, "(wimax_dev %p report_skb %p) = %d\n", wimax_dev, report_skb, result); |