[PATCH] serial: amba-pl011: fix incorrect integer size in pl011_fifo_to_tty()

From: Timur Tabi
Date: Wed Oct 07 2015 - 16:27:23 EST


The UART_DUMMY_DR_RX status bit is equal to (1 << 16), so a u16 is too small
to hold that value. The result is that UART_DUMMY_DR_RX is never passed
to uart_insert_char(). This means that we're always accepting characters,
even when CREAD (in termios) is not set.

Signed-off-by: Timur Tabi <timur@xxxxxxxxxxxxxx>
---
drivers/tty/serial/amba-pl011.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index fd27e98..899a771 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -191,8 +191,8 @@ struct uart_amba_port {
*/
static int pl011_fifo_to_tty(struct uart_amba_port *uap)
{
- u16 status, ch;
- unsigned int flag, max_count = 256;
+ u16 status;
+ unsigned int ch, flag, max_count = 256;
int fifotaken = 0;

while (max_count--) {
--
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.

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