serial: tegra: Use unsigned types for RX and TX byte counts
The function tty_insert_flip_string() takes an argument "size" which is
of type size_t. This is an unsigned type. Update the count,
rx_bytes_requested and tx_bytes_requested in the tegra serial driver to
be unsigned integers so that an unsigned type is passed to
tty_insert_flip_string().
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index 17d8a08..a5312e4 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -131,8 +131,8 @@
struct dma_async_tx_descriptor *rx_dma_desc;
dma_cookie_t tx_cookie;
dma_cookie_t rx_cookie;
- int tx_bytes_requested;
- int rx_bytes_requested;
+ unsigned int tx_bytes_requested;
+ unsigned int rx_bytes_requested;
};
static void tegra_uart_start_next_tx(struct tegra_uart_port *tup);
@@ -408,7 +408,7 @@
struct circ_buf *xmit = &tup->uport.state->xmit;
struct dma_tx_state state;
unsigned long flags;
- int count;
+ unsigned int count;
dmaengine_tx_status(tup->tx_dma_chan, tup->rx_cookie, &state);
count = tup->tx_bytes_requested - state.residue;
@@ -500,7 +500,7 @@
struct tegra_uart_port *tup = to_tegra_uport(u);
struct circ_buf *xmit = &tup->uport.state->xmit;
struct dma_tx_state state;
- int count;
+ unsigned int count;
if (tup->tx_in_progress != TEGRA_UART_TX_DMA)
return;
@@ -550,7 +550,8 @@
}
static void tegra_uart_copy_rx_to_tty(struct tegra_uart_port *tup,
- struct tty_port *tty, int count)
+ struct tty_port *tty,
+ unsigned int count)
{
int copied;
@@ -579,7 +580,7 @@
{
struct tegra_uart_port *tup = args;
struct uart_port *u = &tup->uport;
- int count = tup->rx_bytes_requested;
+ unsigned int count = tup->rx_bytes_requested;
struct tty_struct *tty = tty_port_tty_get(&tup->uport.state->port);
struct tty_port *port = &u->state->port;
unsigned long flags;
@@ -628,7 +629,7 @@
struct tty_struct *tty = tty_port_tty_get(&tup->uport.state->port);
struct tty_port *port = &tup->uport.state->port;
struct uart_port *u = &tup->uport;
- int count;
+ unsigned int count;
/* Deactivate flow control to stop sender */
if (tup->rts_active)