3.6.11.2 stable review patch.
If anyone has any objections, please let me know.
------------------
From: Johan Hovold <jhov...@gmail.com>
[ Upstream commit e670c6af12517d08a403487b1122eecf506021cf ]
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.
Cc: stable <sta...@vger.kernel.org>
Signed-off-by: Johan Hovold <jhov...@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rost...@goodmis.org>
---
drivers/usb/serial/mos7840.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 5311819..fbef4f7 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -441,6 +441,9 @@ 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);
}
}
@@ -2095,8 +2098,6 @@ 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);
}
--
1.7.10.4
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