From: Borislav Petkov <bbpetkov@yahoo.de>
Date: Sun, 28 Oct 2007 12:24:16 +0000 (+0100)
Subject: usbserial: fix inconsistent lock state
X-Git-Tag: v2.6.24-rc4~76^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bfaeafcfc2242277e31cc1cfae687afaac0cd9ec;p=pandora-kernel.git

usbserial: fix inconsistent lock state

In commit acd2a847e7fee7df11817f67dba75a2802793e5d usb_serial_generic_write()
disables interrupts when taking &port->lock which is also taken in
usb_serial_generic_read_bulk_callback() resulting in an inconsistent lock state
due to the latter not disabling interrupts on the local cpu. Fix that by
disabling interrupts in the latter call site also.

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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