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| author | Eric Lapuyade <eric.lapuyade@linux.intel.com> | 2012-09-11 10:43:50 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-09-25 00:17:25 +0200 |
| commit | f3e8fb552789f4845e60b11c47b676d14b9488e5 (patch) | |
| tree | 8fde55db141d361952cbb190d9e59231e143157b /net/nfc/hci/shdlc.c | |
| parent | e4c4789e55327e5f2bd6cafcccd46f9b6251bbc3 (diff) | |
| download | op-kernel-dev-f3e8fb552789f4845e60b11c47b676d14b9488e5.zip op-kernel-dev-f3e8fb552789f4845e60b11c47b676d14b9488e5.tar.gz | |
NFC: Modified hci_transceive to become an asynchronous operation
This enables the completion callback to be called from a different
context, preventing a possible deadlock if the callback resulted in the
invocation of a nested call to the currently locked nfc_dev.
This is also more in line with the im_transceive nfc_ops for NFC Core or
NCI drivers which already behave asynchronously.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc/hci/shdlc.c')
| -rw-r--r-- | net/nfc/hci/shdlc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/nfc/hci/shdlc.c b/net/nfc/hci/shdlc.c index 9357ba7..c63af7d 100644 --- a/net/nfc/hci/shdlc.c +++ b/net/nfc/hci/shdlc.c @@ -777,12 +777,13 @@ static int nfc_shdlc_complete_target_discovered(struct nfc_hci_dev *hdev, static int nfc_shdlc_data_exchange(struct nfc_hci_dev *hdev, struct nfc_target *target, struct sk_buff *skb, - struct sk_buff **res_skb) + data_exchange_cb_t cb, void *cb_context) { struct nfc_shdlc *shdlc = nfc_hci_get_clientdata(hdev); if (shdlc->ops->data_exchange) - return shdlc->ops->data_exchange(shdlc, target, skb, res_skb); + return shdlc->ops->data_exchange(shdlc, target, skb, cb, + cb_context); return -EPERM; } |
