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USB: serial: kl5kusb105: fix memleak on open

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commit 3f203f057edfcf6bd02c6b942799262bfcf31f73 upstream.

Fix memory leak of control-message transfer buffer on successful open().

Fixes: 6774d5f53271 ("USB: serial: kl5kusb105: fix open error path")
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2020-12-04 09:55:19 +01:00 committed by Greg Kroah-Hartman
parent 8954745718
commit f0990c21af
1 changed files with 4 additions and 6 deletions
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10
drivers/usb/serial/kl5kusb105.c
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@ -276,12 +276,12 @@ static int klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
priv->cfg.unknown2 = cfg->unknown2;
spin_unlock_irqrestore(&priv->lock, flags);
kfree(cfg);
/* READ_ON and urb submission */
rc = usb_serial_generic_open(tty, port);
if (rc) {
retval = rc;
goto err_free_cfg;
}
if (rc)
return rc;
rc = usb_control_msg(port->serial->dev,
usb_sndctrlpipe(port->serial->dev, 0),
@ -324,8 +324,6 @@ err_disable_read:
KLSI_TIMEOUT);
err_generic_close:
usb_serial_generic_close(port);
err_free_cfg:
kfree(cfg);
return retval;
}