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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-04-01 11:53:50 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-04-01 11:53:50 -0400 |
| commit | 84daeb09ef2b11cb0b29e100766e38e206c8bc47 (patch) | |
| tree | c89748e1bb8618aac7ad0d2079fba43543844483 /drivers/connector/connector.c | |
| parent | ecb78ab6f30106ab72a575a25b1cdfd1633b7ca2 (diff) | |
| parent | c100c8f4c3c6f2a407bdbaaad2c4f1062e6a473a (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
appletalk: Fix OOPS in atalk_release().
mlx4: Fixing bad size of event queue buffer
mlx4: Fixing use after free
bonding:typo in comment
sctp: Pass __GFP_NOWARN to hash table allocation attempts.
connector: convert to synchronous netlink message processing
fib: add rtnl locking in ip_fib_net_exit
atm/solos-pci: Don't flap VCs when carrier state changes
atm/solos-pci: Don't include frame pseudo-header on transmit hex-dump
atm/solos-pci: Use VPI.VCI notation uniformly.
Atheros, atl2: Fix mem leaks in error paths of atl2_set_eeprom
netdev: fix mtu check when TSO is enabled
net/usb: Ethernet quirks for the LG-VL600 4G modem
phylib: phy_attach_direct: phy_init_hw can fail, add cleanup
bridge: mcast snooping, fix length check of snooped MLDv1/2
via-ircc: Pass PCI device pointer to dma_{alloc, free}_coherent()
via-ircc: Use pci_{get, set}_drvdata() instead of static pointer variable
net: gre: provide multicast mappings for ipv4 and ipv6
bridge: Fix compilation warning in function br_stp_recalculate_bridge_id()
net: Fix warnings caused by MAX_SKB_FRAGS change.
Diffstat (limited to 'drivers/connector/connector.c')
| -rw-r--r-- | drivers/connector/connector.c | 47 |
1 files changed, 12 insertions, 35 deletions
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c index f7554de3be5e..d77005849af8 100644 --- a/drivers/connector/connector.c +++ b/drivers/connector/connector.c | |||
| @@ -122,51 +122,28 @@ EXPORT_SYMBOL_GPL(cn_netlink_send); | |||
| 122 | */ | 122 | */ |
| 123 | static int cn_call_callback(struct sk_buff *skb) | 123 | static int cn_call_callback(struct sk_buff *skb) |
| 124 | { | 124 | { |
| 125 | struct cn_callback_entry *__cbq, *__new_cbq; | 125 | struct cn_callback_entry *i, *cbq = NULL; |
| 126 | struct cn_dev *dev = &cdev; | 126 | struct cn_dev *dev = &cdev; |
| 127 | struct cn_msg *msg = NLMSG_DATA(nlmsg_hdr(skb)); | 127 | struct cn_msg *msg = NLMSG_DATA(nlmsg_hdr(skb)); |
| 128 | struct netlink_skb_parms *nsp = &NETLINK_CB(skb); | ||
| 128 | int err = -ENODEV; | 129 | int err = -ENODEV; |
| 129 | 130 | ||
| 130 | spin_lock_bh(&dev->cbdev->queue_lock); | 131 | spin_lock_bh(&dev->cbdev->queue_lock); |
| 131 | list_for_each_entry(__cbq, &dev->cbdev->queue_list, callback_entry) { | 132 | list_for_each_entry(i, &dev->cbdev->queue_list, callback_entry) { |
| 132 | if (cn_cb_equal(&__cbq->id.id, &msg->id)) { | 133 | if (cn_cb_equal(&i->id.id, &msg->id)) { |
| 133 | if (likely(!work_pending(&__cbq->work) && | 134 | atomic_inc(&i->refcnt); |
| 134 | __cbq->data.skb == NULL)) { | 135 | cbq = i; |
| 135 | __cbq->data.skb = skb; | ||
| 136 | |||
| 137 | if (queue_work(dev->cbdev->cn_queue, | ||
| 138 | &__cbq->work)) | ||
| 139 | err = 0; | ||
| 140 | else | ||
| 141 | err = -EINVAL; | ||
| 142 | } else { | ||
| 143 | struct cn_callback_data *d; | ||
| 144 | |||
| 145 | err = -ENOMEM; | ||
| 146 | __new_cbq = kzalloc(sizeof(struct cn_callback_entry), GFP_ATOMIC); | ||
| 147 | if (__new_cbq) { | ||
| 148 | d = &__new_cbq->data; | ||
| 149 | d->skb = skb; | ||
| 150 | d->callback = __cbq->data.callback; | ||
| 151 | d->free = __new_cbq; | ||
| 152 | |||
| 153 | INIT_WORK(&__new_cbq->work, | ||
| 154 | &cn_queue_wrapper); | ||
| 155 | |||
| 156 | if (queue_work(dev->cbdev->cn_queue, | ||
| 157 | &__new_cbq->work)) | ||
| 158 | err = 0; | ||
| 159 | else { | ||
| 160 | kfree(__new_cbq); | ||
| 161 | err = -EINVAL; | ||
| 162 | } | ||
| 163 | } | ||
| 164 | } | ||
| 165 | break; | 136 | break; |
| 166 | } | 137 | } |
| 167 | } | 138 | } |
| 168 | spin_unlock_bh(&dev->cbdev->queue_lock); | 139 | spin_unlock_bh(&dev->cbdev->queue_lock); |
| 169 | 140 | ||
| 141 | if (cbq != NULL) { | ||
| 142 | cbq->callback(msg, nsp); | ||
| 143 | kfree_skb(skb); | ||
| 144 | cn_queue_release_callback(cbq); | ||
| 145 | } | ||
| 146 | |||
| 170 | return err; | 147 | return err; |
| 171 | } | 148 | } |
| 172 | 149 | ||
