diff options
| author | Leilei Zhao <leilei.zhao@atmel.com> | 2015-02-27 16:07:15 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-07 03:51:47 +0100 |
| commit | a510880f6ea00ee28f22ec61a3c53357bb1bbaa5 (patch) | |
| tree | 50f54a593b892efbd1e5ad5496f73f21ab80d7eb | |
| parent | 2c2770541040318fa6ac0ac4424d8af6dd0709bf (diff) | |
tty/serial: at91: correct buffer size used in DMA
The buffer size set in DMA is inconsistent with its allocation.
So keep them consistent here. The structure atmel_uart_char is
used in PIO mode with its meaning. But here in DMA, all of the
buffer is treated as general char.
Signed-off-by: Leilei Zhao <leilei.zhao@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/atmel_serial.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 1a1d255baab5..6b70ec6d1704 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1030,7 +1030,7 @@ static int atmel_prepare_rx_dma(struct uart_port *port) BUG_ON(!PAGE_ALIGNED(ring->buf)); sg_set_page(&atmel_port->sg_rx, virt_to_page(ring->buf), - ATMEL_SERIAL_RINGSIZE, + sizeof(struct atmel_uart_char) * ATMEL_SERIAL_RINGSIZE, (int)ring->buf & ~PAGE_MASK); nent = dma_map_sg(port->dev, &atmel_port->sg_rx, |