From a6612fb6dd3746cfc9138ebc84210945a8fffa10 Mon Sep 17 00:00:00 2001
From: Sebastian Parschauer <sparschauer@suse.de>
Date: Tue, 4 Oct 2016 11:37:30 +0200
Subject: [PATCH 57/75] libparted: Don't warn if no HDIO_GET_IDENTITY ioctl

Fully virtualized Xen VMs (HVM) use Linux IDE devices which don't
support the HDIO_GET_IDENTITY ioctl. EINVAL is returned, a warning
is printed and the device model is set to "Generic IDE" in that
case. The problem is seeing the warning all the time. So drop it
for this case.

Signed-off-by: Brian C. Lane <bcl@redhat.com>
---
 libparted/arch/linux.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libparted/arch/linux.c b/libparted/arch/linux.c
index b7ba5de..2058697 100644
--- a/libparted/arch/linux.c
+++ b/libparted/arch/linux.c
@@ -931,6 +931,7 @@ init_ide (PedDevice* dev)
         PedExceptionOption      ex_status;
         char                    hdi_buf[41];
         int                     sector_multiplier = 0;
+        int                     r;
 
         if (!_device_stat (dev, &dev_stat))
                 goto error;
@@ -938,7 +939,11 @@ init_ide (PedDevice* dev)
         if (!_device_open_ro (dev))
                 goto error;
 
-        if (ioctl (arch_specific->fd, HDIO_GET_IDENTITY, &hdi)) {
+        r = ioctl (arch_specific->fd, HDIO_GET_IDENTITY, &hdi);
+        if (r && errno == EINVAL) {
+                /* silently ignore unsupported ioctl */
+                dev->model = strdup(_("Generic IDE"));
+        } else if (r) {
                 ex_status = ped_exception_throw (
                                 PED_EXCEPTION_WARNING,
                                 PED_EXCEPTION_IGNORE_CANCEL,
-- 
2.9.3