diff options
Diffstat (limited to 'drivers/nfc/st21nfca/i2c.c')
| -rw-r--r-- | drivers/nfc/st21nfca/i2c.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c index 3f954ed86d9..ff31939978a 100644 --- a/drivers/nfc/st21nfca/i2c.c +++ b/drivers/nfc/st21nfca/i2c.c @@ -93,7 +93,7 @@ struct st21nfca_i2c_phy { int hard_fault; struct mutex phy_lock; }; -static u8 len_seq[] = { 13, 24, 15, 29 }; +static u8 len_seq[] = { 16, 24, 12, 29 }; static u16 wait_tab[] = { 2, 3, 5, 15, 20, 40}; #define I2C_DUMP_SKB(info, skb) \ @@ -397,12 +397,11 @@ static int st21nfca_hci_i2c_read(struct st21nfca_i2c_phy *phy, * The first read sequence does not start with SOF. * Data is corrupeted so we drop it. */ - if (!phy->current_read_len && buf[0] != ST21NFCA_SOF_EOF) { + if (!phy->current_read_len && !IS_START_OF_FRAME(buf)) { skb_trim(skb, 0); phy->current_read_len = 0; return -EIO; - } else if (phy->current_read_len && - IS_START_OF_FRAME(buf)) { + } else if (phy->current_read_len && IS_START_OF_FRAME(buf)) { /* * Previous frame transmission was interrupted and * the frame got repeated. @@ -487,6 +486,8 @@ static irqreturn_t st21nfca_hci_irq_thread_fn(int irq, void *phy_id) */ nfc_hci_recv_frame(phy->hdev, phy->pending_skb); phy->crc_trials = 0; + } else { + kfree_skb(phy->pending_skb); } phy->pending_skb = alloc_skb(ST21NFCA_HCI_LLC_MAX_SIZE * 2, GFP_KERNEL); |