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author | David S. Miller <davem@davemloft.net> | 2012-09-30 02:30:16 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2012-09-30 02:30:16 -0400 |
commit | a248afdc1b5916c2bfd007233112333d85aa28f6 (patch) | |
tree | 49d4a0b8fdcf7624ea6b0bdf0af2567d7392210e /net/nfc/netlink.c | |
parent | d379142bc4d9b78cdd9fc5aa696ca1ea083fb7d4 (diff) | |
parent | c487606f835a93a725bac1aefd536be98f22474d (diff) | |
download | op-kernel-dev-a248afdc1b5916c2bfd007233112333d85aa28f6.zip op-kernel-dev-a248afdc1b5916c2bfd007233112333d85aa28f6.tar.gz |
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:
====================
Here is another batch of updates intended for 3.7...
Highlights include an hci_connect re-write in Bluetooth, HCI/LLC
layer separation in NFC, removal of the raw pn544 NFC driver, NFC LLCP
raw sockets support, improved IBSS auth frame handling in mac80211,
full-MAC AP mode notification support in mac80211, a lot of attention
paid to brcmfmac, and the usual level of updates to iwlwifi, ath9k,
mwifiex, and rt2x00, and various other updates.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/nfc/netlink.c')
-rw-r--r-- | net/nfc/netlink.c | 46 |
1 files changed, 39 insertions, 7 deletions
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c index 4bbb70e..c1b5285 100644 --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -761,31 +761,63 @@ static struct genl_ops nfc_genl_ops[] = { }, }; -static int nfc_genl_rcv_nl_event(struct notifier_block *this, - unsigned long event, void *ptr) + +struct urelease_work { + struct work_struct w; + int portid; +}; + +static void nfc_urelease_event_work(struct work_struct *work) { - struct netlink_notify *n = ptr; + struct urelease_work *w = container_of(work, struct urelease_work, w); struct class_dev_iter iter; struct nfc_dev *dev; - if (event != NETLINK_URELEASE || n->protocol != NETLINK_GENERIC) - goto out; + pr_debug("portid %d\n", w->portid); - pr_debug("NETLINK_URELEASE event from id %d\n", n->portid); + mutex_lock(&nfc_devlist_mutex); nfc_device_iter_init(&iter); dev = nfc_device_iter_next(&iter); while (dev) { - if (dev->genl_data.poll_req_portid == n->portid) { + mutex_lock(&dev->genl_data.genl_data_mutex); + + if (dev->genl_data.poll_req_portid == w->portid) { nfc_stop_poll(dev); dev->genl_data.poll_req_portid = 0; } + + mutex_unlock(&dev->genl_data.genl_data_mutex); + dev = nfc_device_iter_next(&iter); } nfc_device_iter_exit(&iter); + mutex_unlock(&nfc_devlist_mutex); + + kfree(w); +} + +static int nfc_genl_rcv_nl_event(struct notifier_block *this, + unsigned long event, void *ptr) +{ + struct netlink_notify *n = ptr; + struct urelease_work *w; + + if (event != NETLINK_URELEASE || n->protocol != NETLINK_GENERIC) + goto out; + + pr_debug("NETLINK_URELEASE event from id %d\n", n->portid); + + w = kmalloc(sizeof(*w), GFP_ATOMIC); + if (w) { + INIT_WORK((struct work_struct *) w, nfc_urelease_event_work); + w->portid = n->portid; + schedule_work((struct work_struct *) w); + } + out: return NOTIFY_DONE; } |