diff options
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/st21nfcb/i2c.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/nfc/st21nfcb/i2c.c b/drivers/nfc/st21nfcb/i2c.c index 0f690baaef7a..8af880ead5db 100644 --- a/drivers/nfc/st21nfcb/i2c.c +++ b/drivers/nfc/st21nfcb/i2c.c @@ -164,11 +164,11 @@ static int st21nfcb_nci_i2c_read(struct st21nfcb_i2c_phy *phy, u8 buf[ST21NFCB_NCI_I2C_MAX_SIZE]; struct i2c_client *client = phy->i2c_dev; - r = i2c_master_recv(client, buf, 4); + r = i2c_master_recv(client, buf, ST21NFCB_NCI_I2C_MIN_SIZE); if (r == -EREMOTEIO) { /* Retry, chip was in standby */ usleep_range(1000, 4000); - r = i2c_master_recv(client, buf, 4); - } else if (r != 4) { + r = i2c_master_recv(client, buf, ST21NFCB_NCI_I2C_MIN_SIZE); + } else if (r != ST21NFCB_NCI_I2C_MIN_SIZE) { nfc_err(&client->dev, "cannot read ndlc & nci header\n"); return -EREMOTEIO; } @@ -179,13 +179,13 @@ static int st21nfcb_nci_i2c_read(struct st21nfcb_i2c_phy *phy, return -EBADMSG; } - *skb = alloc_skb(4 + len, GFP_KERNEL); + *skb = alloc_skb(ST21NFCB_NCI_I2C_MIN_SIZE + len, GFP_KERNEL); if (*skb == NULL) return -ENOMEM; - skb_reserve(*skb, 4); - skb_put(*skb, 4); - memcpy((*skb)->data, buf, 4); + skb_reserve(*skb, ST21NFCB_NCI_I2C_MIN_SIZE); + skb_put(*skb, ST21NFCB_NCI_I2C_MIN_SIZE); + memcpy((*skb)->data, buf, ST21NFCB_NCI_I2C_MIN_SIZE); if (!len) return 0; @@ -197,7 +197,7 @@ static int st21nfcb_nci_i2c_read(struct st21nfcb_i2c_phy *phy, } skb_put(*skb, len); - memcpy((*skb)->data + 4, buf, len); + memcpy((*skb)->data + ST21NFCB_NCI_I2C_MIN_SIZE, buf, len); I2C_DUMP_SKB("i2c frame read", *skb); |