From: Wei Yongjun <yjwei@cn.fujitsu.com>
Date: Fri, 12 Mar 2010 00:45:39 +0000 (+0800)
Subject: KVM: ia64: fix the error code of ioctl KVM_IA64_VCPU_GET_STACK failure
X-Git-Tag: v2.6.35-rc1~436^2~187
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c0d0920a270b9f2aa20c1cecb162703da32e766;p=pandora-kernel.git

KVM: ia64: fix the error code of ioctl KVM_IA64_VCPU_GET_STACK failure

The ioctl KVM_IA64_VCPU_GET_STACK does not set the error code if
copy_to_user() fail, and 0 will be return, we should use -EFAULT
instead of 0 in this case, so this patch fixed it.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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