From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 15 May 2012 08:47:47 +0000 (+0300)
Subject: tty: hvc_xen: NULL dereference on allocation failure
X-Git-Tag: v3.5-rc1~146^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bdb595b4a906b8124d0dc5ff852f84302e2e7955;p=pandora-kernel.git

tty: hvc_xen: NULL dereference on allocation failure

If kzalloc() returns a NULL here, we pass a NULL to
xencons_disconnect_backend() which will cause an Oops.

Also I removed the __GFP_ZERO while I was at it since kzalloc() implies
__GFP_ZERO.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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