From 74a74b376c997645b32a4fdf8e76705a00ae097a Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Mon, 17 Sep 2012 19:31:17 +0200
Subject: [PATCH] drivers/virtio/virtio_pci.c: fix error return code

Convert a nonnegative error return code to a negative one, as returned
elsewhere in the function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
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