+ hso-fix-oops-in-read-write-callbacks.patch added to -mm tree

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The patch titled
     hso: fix oops in read/write callbacks
has been added to the -mm tree.  Its filename is
     hso-fix-oops-in-read-write-callbacks.patch

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*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: hso: fix oops in read/write callbacks
From: Olivier Blin <blino@xxxxxxxxxxxx>

The tty may be closed already when the read/write callbacks are called. 
This patch checks that the ttys still exist before waking them up.

Signed-off-by: Olivier Blin <blino@xxxxxxxxxxxx>
Acked-by: Alan Cox <alan@xxxxxxxxxx>
Cc: Jari Tenhunen <jari.tenhunen@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 drivers/net/usb/hso.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff -puN drivers/net/usb/hso.c~hso-fix-oops-in-read-write-callbacks drivers/net/usb/hso.c
--- a/drivers/net/usb/hso.c~hso-fix-oops-in-read-write-callbacks
+++ a/drivers/net/usb/hso.c
@@ -1467,7 +1467,8 @@ static void hso_std_serial_write_bulk_ca
 		return;
 	}
 	hso_put_activity(serial->parent);
-	tty_wakeup(serial->tty);
+	if (serial->tty)
+		tty_wakeup(serial->tty);
 	hso_kick_transmit(serial);
 
 	D1(" ");
@@ -1538,7 +1539,8 @@ static void ctrl_callback(struct urb *ur
 			clear_bit(HSO_SERIAL_FLAG_RX_SENT, &serial->flags);
 	} else {
 		hso_put_activity(serial->parent);
-		tty_wakeup(serial->tty);
+		if (serial->tty)
+			tty_wakeup(serial->tty);
 		/* response to a write command */
 		hso_kick_transmit(serial);
 	}
_

Patches currently in -mm which might be from blino@xxxxxxxxxxxx are

hso-fix-oops-in-read-write-callbacks.patch
hso-fix-refcounting-on-the-ttyhsx-devices.patch
git-unionfs.patch

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