From: Peter Hurley <peter@hurleysoftware.com>
Date: Thu, 7 Nov 2013 18:59:46 +0000 (-0500)
Subject: n_tty: Ensure reader restarts worker for next reader
X-Git-Tag: v3.13-rc2~15^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=42458f41d08f0873299e830464c1232a6839297d;p=pandora-kernel.git

n_tty: Ensure reader restarts worker for next reader

A departing reader must restart a flush_to_ldisc() worker _before_
the next reader enters the read loop; this is to avoid the new reader
concluding no more i/o is available and prematurely exiting, when the
old reader simply hasn't re-started the worker yet.

Cc: stable <stable@vger.kernel.org> # 3.12
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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