From c4277e9ea70431aea0fecebb8bb9a3fbc27d074e Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Sat, 6 Dec 2014 00:28:01 +0300
Subject: [PATCH] uio/uio_pci_generic: don't return zero on failure path in
 probe()

If uio_register_device() fails in probe(), it breaks off initialization,
deallocates all resources, but returns zero.

The patch adds proper error code propagation.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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