[parted-devel] [PATCH] libparted: Don't warn if no HDIO_GET_IDENTITY ioctl

[Sebastian Parschauer]

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.
---
 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 a22b1d7..d87fe9c 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,
-- 
2.6.6