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NFC: Do not take the genl mutex from the netlink release notifier

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The netlink notifier is atomic so we must not sleep in that context.
Also we know that Any netlink packets arriving to us will be purged when
the notifier is called, so we don't need to take the mutex.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Samuel Ortiz 2011-12-14 16:43:07 +01:00 committed by John W. Linville
parent 7c7cd3bfec
commit 94a098da42
1 changed files with 0 additions and 2 deletions
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2
net/nfc/netlink.c
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@ -504,12 +504,10 @@ static int nfc_genl_rcv_nl_event(struct notifier_block *this,
dev = nfc_device_iter_next(&iter);
while (dev) {
mutex_lock(&dev->genl_data.genl_data_mutex);
if (dev->genl_data.poll_req_pid == n->pid) {
nfc_stop_poll(dev);
dev->genl_data.poll_req_pid = 0;
}
mutex_unlock(&dev->genl_data.genl_data_mutex);
dev = nfc_device_iter_next(&iter);
}