This is a note to let you know that I've just added the patch titled USB: mos7840: fix tiocmget error handling to the 3.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usb-mos7840-fix-tiocmget-error-handling.patch and it can be found in the queue-3.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From a91ccd26e75235d86248d018fe3779732bcafd8d Mon Sep 17 00:00:00 2001 From: Johan Hovold <jhovold@xxxxxxxxx> Date: Wed, 9 Oct 2013 17:01:09 +0200 Subject: USB: mos7840: fix tiocmget error handling From: Johan Hovold <jhovold@xxxxxxxxx> commit a91ccd26e75235d86248d018fe3779732bcafd8d upstream. Make sure to return errors from tiocmget rather than rely on uninitialised stack data. Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/serial/mos7840.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1593,7 +1593,11 @@ static int mos7840_tiocmget(struct tty_s return -ENODEV; status = mos7840_get_uart_reg(port, MODEM_STATUS_REGISTER, &msr); + if (status != 1) + return -EIO; status = mos7840_get_uart_reg(port, MODEM_CONTROL_REGISTER, &mcr); + if (status != 1) + return -EIO; result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) | ((mcr & MCR_RTS) ? TIOCM_RTS : 0) | ((mcr & MCR_LOOPBACK) ? TIOCM_LOOP : 0) Patches currently in stable-queue which might be from jhovold@xxxxxxxxx are queue-3.10/usb-mos7840-fix-tiocmget-error-handling.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html