From: Peter Hurley Date: Mon, 10 Feb 2014 01:59:21 +0000 (-0500) Subject: Bluetooth: Force -EIO from tty read/write if .activate() fails X-Git-Tag: archive/raspbian/4.9.13-1+rpi1~10^2~6243^2~11^2~7^2~45^2~215 X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/www.github.com/%22bookmarks:///%22http:/www.example.com/cgi/%22https:/www.github.com/%22bookmarks:/?a=commitdiff_plain;h=5326a4ee982703ddba14a9821fe5cb10d122e1b0;p=linux-4.9.git Bluetooth: Force -EIO from tty read/write if .activate() fails If rfcomm_dlc_open() fails, set tty into error state which returns -EIO from reads and writes. Signed-off-by: Peter Hurley Tested-By: Alexander Holler Signed-off-by: Marcel Holtmann --- diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index 375b60dae04d..f6b9f0c4c29e 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -111,8 +111,12 @@ static void rfcomm_dev_destruct(struct tty_port *port) static int rfcomm_dev_activate(struct tty_port *port, struct tty_struct *tty) { struct rfcomm_dev *dev = container_of(port, struct rfcomm_dev, port); + int err; - return rfcomm_dlc_open(dev->dlc, &dev->src, &dev->dst, dev->channel); + err = rfcomm_dlc_open(dev->dlc, &dev->src, &dev->dst, dev->channel); + if (err) + set_bit(TTY_IO_ERROR, &tty->flags); + return err; } /* we block the open until the dlc->state becomes BT_CONNECTED */