@@ -442,6 +442,9 @@ static void mos7840_handle_new_msr(struct moschip_port *port, __u8 new_msr)
icount->rng++;
smp_wmb();
}
+
+ mos7840_port->delta_msr_cond = 1;
+ wake_up_interruptible(&mos7840_port->delta_msr_wait);
}
}
@@ -2096,8 +2099,6 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
mos7840_port->read_urb_busy = false;
}
}
- wake_up(&mos7840_port->delta_msr_wait);
- mos7840_port->delta_msr_cond = 1;
dbg("mos7840_change_port_settings mos7840_port->shadowLCR is End %x",
mos7840_port->shadowLCR);
}
This is a note to let you know that I have just added a patch titled USB: mos7840: fix broken TIOCMIWAIT to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From 6dd3e6b240e3b532f834a04f484eb063b2fce095 Mon Sep 17 00:00:00 2001 From: Johan Hovold <jhovold@gmail.com> Date: Tue, 19 Mar 2013 09:21:19 +0100 Subject: [PATCH] USB: mos7840: fix broken TIOCMIWAIT commit e670c6af12517d08a403487b1122eecf506021cf upstream. Make sure waiting processes are woken on modem-status changes. Currently processes are only woken on termios changes regardless of whether the modem status has changed. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [ luis: adjust context ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/usb/serial/mos7840.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) -- 1.8.1.2