From: Jiri Kosina <jkosina@suse.cz>
Date: Fri, 19 Oct 2007 22:05:19 +0000 (+0200)
Subject: USB: usbserial - fix potential deadlock between write() and IRQ
X-Git-Tag: v2.6.24-rc2~136^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=acd2a847e7fee7df11817f67dba75a2802793e5d;p=pandora-kernel.git

USB: usbserial - fix potential deadlock between write() and IRQ

USB: usbserial - fix potential deadlock between write() and IRQ

usb_serial_generic_write() doesn't disable interrupts when taking port->lock,
and could therefore deadlock with usb_serial_generic_read_bulk_callback()
being called from interrupt, taking the same lock. Fix it.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Larry Finger <larry.finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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