diff options
| author | Kirill Batuzov <batuzovk@ispras.ru> | 2014-04-29 17:38:39 +0400 |
|---|---|---|
| committer | Andreas Färber <afaerber@suse.de> | 2014-05-05 20:58:33 +0200 |
| commit | 848696bf353750899832c51005f1bd3540da5c29 (patch) | |
| tree | 6936043a73c83a04f36c5c1cf4e58b94e2622d8b /hw/isa/isa-bus.c | |
| parent | cc900d34e7f298dd4b41c5626307de15416bb045 (diff) | |
PortioList: Store PortioList in device state
PortioList is an abstraction used for construction of MemoryRegionPortioList
from MemoryRegionPortio. It can be used later to unmap created memory regions.
It also requires proper cleanup because some of the memory inside is allocated
dynamically.
By moving PortioList ot device state we make it possible to cleanup later and
avoid leaking memory.
This change spans several target platforms. The following testcases cover all
changed lines:
qemu-system-ppc -M prep
qemu-system-i386 -vga qxl
qemu-system-i386 -M isapc -soundhw adlib -device ib700,id=watchdog0,bus=isa.0
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'hw/isa/isa-bus.c')
| -rw-r--r-- | hw/isa/isa-bus.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/hw/isa/isa-bus.c b/hw/isa/isa-bus.c index 55d01008d3..b28981bfde 100644 --- a/hw/isa/isa-bus.c +++ b/hw/isa/isa-bus.c @@ -108,15 +108,20 @@ void isa_register_portio_list(ISADevice *dev, uint16_t start, const MemoryRegionPortio *pio_start, void *opaque, const char *name) { - PortioList *piolist = g_new(PortioList, 1); + PortioList piolist; /* START is how we should treat DEV, regardless of the actual contents of the portio array. This is how the old code actually handled e.g. the FDC device. */ isa_init_ioport(dev, start); - portio_list_init(piolist, OBJECT(dev), pio_start, opaque, name); - portio_list_add(piolist, isabus->address_space_io, start); + /* FIXME: the device should store created PortioList in its state. Note + that DEV can be NULL here and that single device can register several + portio lists. Current implementation is leaking memory allocated + in portio_list_init. The leak is not critical because it happens only + at initialization time. */ + portio_list_init(&piolist, OBJECT(dev), pio_start, opaque, name); + portio_list_add(&piolist, isabus->address_space_io, start); } static void isa_device_init(Object *obj) |