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[01/16] staging: fwserial: fix TIOCSSERIAL jiffies conversions

Message ID 20210407102334.32361-2-johan@kernel.org
State Accepted
Commit 7a3791afdbd5a951b09a7689bba856bd9f6c6a9f
Headers show
Series [01/16] staging: fwserial: fix TIOCSSERIAL jiffies conversions | expand

Commit Message

Johan Hovold April 7, 2021, 10:23 a.m. UTC 
The port close_delay parameter set by TIOCSSERIAL is specified in
jiffies, while the value returned by TIOCGSERIAL is specified in
centiseconds.

Add the missing conversions so that TIOCGSERIAL works as expected also
when HZ is not 100.

Fixes: 7355ba3445f2 ("staging: fwserial: Add TTY-over-Firewire serial driver")
Cc: stable@vger.kernel.org      # 3.8
Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/staging/fwserial/fwserial.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c
index c368082aae1a..c963848522b1 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -1223,7 +1223,7 @@  static int get_serial_info(struct tty_struct *tty,
 	ss->flags = port->port.flags;
 	ss->xmit_fifo_size = FWTTY_PORT_TXFIFO_LEN;
 	ss->baud_base = 400000000;
-	ss->close_delay = port->port.close_delay;
+	ss->close_delay = jiffies_to_msecs(port->port.close_delay) / 10;
 	mutex_unlock(&port->port.mutex);
 	return 0;
 }
@@ -1245,7 +1245,7 @@  static int set_serial_info(struct tty_struct *tty,
 			return -EPERM;
 		}
 	}
-	port->port.close_delay = ss->close_delay * HZ / 100;
+	port->port.close_delay = msecs_to_jiffies(ss->close_delay * 10);
 	mutex_unlock(&port->port.mutex);
 
 	return 0;