diff options
| author | Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> | 2012-11-26 14:18:37 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-01-10 00:44:30 +0100 |
| commit | d22b2db69035ae3b8f71a58dfe0bd10ae1ee58d5 (patch) | |
| tree | e50a9119d488910862a73e44383f46dcbaad443d /drivers/nfc | |
| parent | 94c5c1561dde894766b1a9135e47b056fdbe13a4 (diff) | |
NFC: pn533: Add pn533_alloc_skb for req allocation
Allocate sk_buff for the request.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/pn533.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index 94c88bb601c..c34acd0dc5f 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -1062,6 +1062,20 @@ static void pn533_send_complete(struct urb *urb) } } +static struct sk_buff *pn533_alloc_skb(unsigned int size) +{ + struct sk_buff *skb; + + skb = alloc_skb(PN533_FRAME_HEADER_LEN + + size + + PN533_FRAME_TAIL_LEN, GFP_KERNEL); + + if (skb) + skb_reserve(skb, PN533_FRAME_HEADER_LEN); + + return skb; +} + struct pn533_target_type_a { __be16 sens_res; u8 sel_res; @@ -2390,15 +2404,11 @@ static void pn533_wq_mi_recv(struct work_struct *work) nfc_dev_dbg(&dev->interface->dev, "%s", __func__); /* This is a zero payload size skb */ - skb_cmd = alloc_skb(PN533_FRAME_HEADER_LEN + - PN533_CMD_DATAEXCH_HEAD_LEN + - PN533_FRAME_TAIL_LEN, - GFP_KERNEL); + skb_cmd = pn533_alloc_skb(PN533_CMD_DATAEXCH_HEAD_LEN); if (skb_cmd == NULL) goto error_cmd; - skb_reserve(skb_cmd, - PN533_FRAME_HEADER_LEN + PN533_CMD_DATAEXCH_HEAD_LEN); + skb_reserve(skb_cmd, PN533_CMD_DATAEXCH_HEAD_LEN); rc = pn533_build_tx_frame(dev, skb_cmd, true); if (rc) |