From: Chen Gang <gang.chen@asianux.com>
Date: Thu, 28 Feb 2013 02:34:23 +0000 (+0800)
Subject: xen/xen-blkback: preq.dev is used without initialized
X-Git-Tag: v3.9-rc5~3^2~9^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a72d9002f80bffd7e4c7d60e5a9caa0cddffe894;p=pandora-kernel.git

xen/xen-blkback: preq.dev is used without initialized

If call xen_vbd_translate failed, the preq.dev will be not initialized.
Use blkif->vbd.pdevice instead (still better to print relative info).

Note that before commit 01c681d4c70d64cb72142a2823f27c4146a02e63
(xen/blkback: Don't trust the handle from the frontend.)
the value bogus, as it was the guest provided value from req->u.rw.handle
rather than the actual device.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---

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