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Groups > linux.kernel > #1241783

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

From Timur Tabi <timur@codeaurora.org>
Newsgroups linux.kernel
Subject [PATCH] serial: amba-pl011: fix incorrect integer size in pl011_fifo_to_tty()
Date 2015-10-07 22:30 +0200
Message-ID <qh3vA-78b-9@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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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@codeaurora.org>
---
 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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[PATCH] serial: amba-pl011: fix incorrect integer size in pl011_fifo_to_tty() Timur Tabi <timur@codeaurora.org> - 2015-10-07 22:30 +0200
  Re: [PATCH] serial: amba-pl011: fix incorrect integer size in  pl011_fifo_to_tty() Dave Martin <Dave.Martin@arm.com> - 2015-10-16 14:50 +0200

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