[PATCH v2 04/14] USB: serial: ch341: fix open error handling
From: Johan Hovold <johan@kernel.org>
Date: 2017-01-06 18:15:42
Subsystem:
the rest, usb serial subsystem, usb subsystem · Maintainers:
Linus Torvalds, Johan Hovold, Greg Kroah-Hartman
Make sure to stop the interrupt URB before returning on errors during
open.
Fixes: 664d5df92e88 ("USB: usb-serial ch341: support for DTR/RTS/CTS")
Cc: stable <redacted>
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/usb/serial/ch341.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 0cc5056b304d..8f41d4385f1c 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c@@ -319,7 +319,7 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port) r = ch341_configure(serial->dev, priv); if (r) - goto out; + return r; if (tty) ch341_set_termios(tty, port, NULL);
@@ -329,12 +329,19 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port) if (r) { dev_err(&port->dev, "%s - failed to submit interrupt urb: %d\n", __func__, r); - goto out; + return r; } r = usb_serial_generic_open(tty, port); + if (r) + goto err_kill_interrupt_urb; + + return 0; + +err_kill_interrupt_urb: + usb_kill_urb(port->interrupt_in_urb); -out: return r; + return r; } /* Old_termios contains the original termios settings and
--
2.10.2