From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sun, 20 Jul 2014 05:46:01 +0000 (+0800)
Subject: xen/pciback: Fix error return code in xen_pcibk_attach()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2ef760323a8a7ced5e1b2286c8df95226606a64e;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

xen/pciback: Fix error return code in xen_pcibk_attach()

Fix to return -EFAULT from the error handling case instead of 0 when
version mismatch with pcifront.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by Jan Beulich <jbeulich@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---

diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c
index 4a7e6e0a5f4c..c214daab4829 100644
--- a/drivers/xen/xen-pciback/xenbus.c
+++ b/drivers/xen/xen-pciback/xenbus.c
@@ -174,6 +174,7 @@ static int xen_pcibk_attach(struct xen_pcibk_device *pdev)
 				 "version mismatch (%s/%s) with pcifront - "
 				 "halting " DRV_NAME,
 				 magic, XEN_PCI_MAGIC);
+		err = -EFAULT;
 		goto out;
 	}