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authorJohan Hovold <johan@kernel.org>2017-01-06 19:15:13 +0100
committerJohan Hovold <johan@kernel.org>2017-01-09 14:55:38 +0100
commitf2950b78547ffb8475297ada6b92bc2d774d5461 (patch)
tree59e72b647441540b647a4571d091e3407e62d37d /drivers/usb
parent030ee7ae52a46a2be52ccc8242c4a330aba8d38e (diff)
USB: serial: ch341: fix open error handling
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 <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/serial/ch341.c13
1 files 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