qdev-monitor: Unref device when device_add fails

qdev_device_add() leaks the created device upon failure.  I suspect this
problem crept in because qdev_free() unparents the device but does not
drop a reference - confusing name.

Cc: qemu-stable@nongnu.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
qdev: Drop misleading qdev_free() function

The qdev_free() function name is misleading since all the function does
is unlink the device from its parent.  The device is not necessarily
freed.

The device will be freed when its QObject refcount reaches zero.  It is
usual for the parent (bus) to hold the final reference but there are
cases where something else holds a reference so "free" is a misleading
name.

Call object_unparent(obj) directly instead of having a qdev wrapper
function.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
qdev-monitor: Avoid qdev as variable name

Prepares for bringing error cleanup code into canonical QOM form.

Includes a whitespace removal after curly brace by Stefan.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
qdev-monitor: Inline qdev_init() for device_add

For historic reasons, qdev_init() unparents the device on failure.
Inline this to make the error paths clearer and consistent.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
qom: Fix pointer to int property helpers' documentation

Relocate to alongside the other object_property_add_* helpers while at it.

Signed-off-by: Andreas Färber <afaerber@suse.de>
pxa: Fix typo "dettach"

Signed-off-by: Andreas Färber <afaerber@suse.de>
pcmcia: QOM'ify PCMCIACardState and MicroDriveState

Turn PCMCIACardState into a device.
Move callbacks to new PCMCIACardClass.

Derive TYPE_MICRODRIVE from TYPE_PCMCIA_CARD.
Replace ide_init2_with_non_qdev_drives().

Signed-off-by: Othmar Pasteka <pasteka@kabsi.at>
Signed-off-by: Andreas Färber <afaerber@suse.de>
microdrive: Coding Style cleanups

Add missing braces.

Signed-off-by: Andreas Färber <afaerber@suse.de>
ide: Drop ide_init2_with_non_qdev_drives()

All its users have finally been converted.

Signed-off-by: Andreas Färber <afaerber@suse.de>
pcmcia/pxa2xx: QOM'ify PXA2xxPCMCIAState

Turn it into a SysBusDevice and use a container MemoryRegion.

Add a link<pcmcia-card> property to the PCMCIACardState.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Merge remote-tracking branch 'afaerber/tags/qom-devices-for-anthony' into staging

QOM device refactorings

* QTest coverage for all machines
* QOM realize for Milkymist UART
* QOM realize for ARM MPCore
* device_add bug fixes and cleanups
* QOM for PCMCIA/MicroDrive (last legacy IDE device)

# gpg: Signature made Tue 05 Nov 2013 09:07:03 AM PST using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found

# By Andreas Färber (49) and others
# Via Andreas Färber
* afaerber/tags/qom-devices-for-anthony: (54 commits)
  pcmcia/pxa2xx: QOM'ify PXA2xxPCMCIAState
  ide: Drop ide_init2_with_non_qdev_drives()
  microdrive: Coding Style cleanups
  pcmcia: QOM'ify PCMCIACardState and MicroDriveState
  pxa: Fix typo "dettach"
  qom: Fix pointer to int property helpers' documentation
  qdev-monitor: Inline qdev_init() for device_add
  qdev-monitor: Avoid qdev as variable name
  qdev: Drop misleading qdev_free() function
  qdev-monitor: Unref device when device_add fails
  qdev-monitor: Fix crash when device_add is called with abstract driver
  qdev-monitor: Clean up qdev_device_add() variable naming
  arm11mpcore: Split off RealView MPCore
  arm11mpcore: Prepare for QOM embedding
  arm11mpcore: Convert mpcore_rirq_state to QOM realize
  realview_gic: Prepare for QOM embedding
  realview_gic: Convert to QOM realize
  arm11mpcore: Convert ARM11MPCorePriveState to QOM realize
  arm11mpcore: Split off SCU device
  arm11mpcore: Create container MemoryRegion in instance_init
  ...
bswap.h: Remove cpu_to_le16wu()

Replace the legacy cpu_to_le16wu() with stw_le_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-2-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
bswap.h: Remove cpu_to_le32wu()

Replace the legacy cpu_to_le32wu() with stl_le_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-3-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
bswap.h: Remove le16_to_cpupu()

Replace the legacy le16_to_cpupu() with lduw_le_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-4-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
bswap.h: Remove le32_to_cpupu()

Replace the legacy le32_to_cpupu() with ldl_le_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-5-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
bswap.h: Remove be32_to_cpupu()

Replace the legacy be32_to_cpupu() with ldl_be_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-6-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
bswap.h: Remove cpu_to_be16wu()

Replace the legacy cpu_to_be16wu() with stw_be_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-7-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
bswap.h: Remove cpu_to_be32wu()

Replace the legacy cpu_to_be32wu() with stl_be_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-8-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
bswap.h: Remove cpu_to_be64wu()

Replace the legacy cpu_to_be64wu() with stq_be_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-9-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
bswap.h: Remove cpu_to_32wu()

Replace the legacy cpu_to_32wu() with stl_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-10-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>