diff mbox series

[v1,3/7] serial: imx: do not sysrq broken chars

Message ID 20230201142700.4346-4-sorganov@gmail.com (mailing list archive)
State New, archived
Headers show
Series [v1,1/7] serial: imx: factor-out common code to imx_uart_soft_reset() | expand

Commit Message

Sergey Organov Feb. 1, 2023, 2:26 p.m. UTC 
Do not call uart_handle_sysrq_char() if we got any receive error along with
the character, as we don't want random junk to be considered a sysrq.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
---
 drivers/tty/serial/imx.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index e7fce31e460d..e709118fe85c 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -911,9 +911,6 @@  static irqreturn_t __imx_uart_rxint(int irq, void *dev_id)
 				continue;
 		}
 
-		if (uart_handle_sysrq_char(&sport->port, (unsigned char)rx))
-			continue;
-
 		if (unlikely(rx & URXD_ERR)) {
 			if (rx & URXD_BRK)
 				sport->port.icount.brk++;
@@ -942,6 +939,8 @@  static irqreturn_t __imx_uart_rxint(int irq, void *dev_id)
 				flg = TTY_OVERRUN;
 
 			sport->port.sysrq = 0;
+		} else if (uart_handle_sysrq_char(&sport->port, (unsigned char)rx)) {
+			continue;
 		}
 
 		if (sport->port.ignore_status_mask & URXD_DUMMY_READ)