From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Wed, 9 May 2012 14:27:35 +0000 (+0200)
Subject: s390: initialize backchain for ext_int_handler()
X-Git-Tag: v3.5-rc1~189^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0de9db37f0dff3bda21b3650ba60a21d3fe70df2;p=pandora-kernel.git

s390: initialize backchain for ext_int_handler()

To allow correct stack backtraces the backchain for the external
interrupt handler is now initialized with zero like it is already
done for example by io_int_handler().

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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