From: Henry Gebhardt <gebhardt@astro.uni-tuebingen.de>
Date: Wed, 4 Nov 2009 10:19:28 +0000 (+0100)
Subject: USB: cdc_acm: Fix race condition when opening tty
X-Git-Tag: v2.6.32-rc8~12^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18a77b5d237a67d2c621a46f5271a3b51da1b380;p=pandora-kernel.git

USB: cdc_acm: Fix race condition when opening tty

If acm_rx_tasklet() gets called before tty_port_block_til_ready()
returns, then bulk IN urbs may not be sent. This fixes it.

Signed-off-by: Henry Gebhardt <gebhardt@astro.uni-tuebingen.de>
Acked-by: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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