diff options
Diffstat (limited to 'net/nfc/nci/spi.c')
| -rw-r--r-- | net/nfc/nci/spi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c index 5c2234024774..c111506b36d1 100644 --- a/net/nfc/nci/spi.c +++ b/net/nfc/nci/spi.c @@ -44,6 +44,7 @@ static int __nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb) struct spi_message m; struct spi_transfer t; + memset(&t, 0, sizeof(struct spi_transfer)); t.tx_buf = skb->data; t.len = skb->len; t.cs_change = 0; @@ -173,16 +174,21 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi *nspi) int ret; spi_message_init(&m); + + memset(&tx, 0, sizeof(struct spi_transfer)); req[0] = NCI_SPI_DIRECT_READ; req[1] = nspi->acknowledge_mode; tx.tx_buf = req; tx.len = 2; tx.cs_change = 0; spi_message_add_tail(&tx, &m); + + memset(&rx, 0, sizeof(struct spi_transfer)); rx.rx_buf = resp_hdr; rx.len = 2; rx.cs_change = 1; spi_message_add_tail(&rx, &m); + ret = spi_sync(nspi->spi, &m); if (ret) @@ -199,11 +205,14 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi *nspi) return NULL; spi_message_init(&m); + + memset(&rx, 0, sizeof(struct spi_transfer)); rx.rx_buf = skb_put(skb, rx_len); rx.len = rx_len; rx.cs_change = 0; rx.delay_usecs = nspi->xfer_udelay; spi_message_add_tail(&rx, &m); + ret = spi_sync(nspi->spi, &m); if (ret) |