ide: core: add cleanup function

As the pci ahci can be hotplug and unplug, in the ahci unrealize
function it should free all the resource once allocated in the
realized function. This patch add ide_exit to free the resource.

Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Message-id: 1488449293-80280-3-git-send-email-liqiang6-s@360.cn
Signed-off-by: John Snow <jsnow@redhat.com>

diff --git a/hw/ide/core.c b/hw/ide/core.c
index db509b3e15b0db1ca047d4f73f2a9e1bd4b30756..0b48b64d3ae6bb5aa43a26fbcc17973dea9525ca 100644 (file)
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -2603,6 +2603,14 @@ void ide_init2(IDEBus *bus, qemu_irq irq)
     bus->dma = &ide_dma_nop;
 }
 
+void ide_exit(IDEState *s)
+{
+    timer_del(s->sector_write_timer);
+    timer_free(s->sector_write_timer);
+    qemu_vfree(s->smart_selftest_data);
+    qemu_vfree(s->io_buffer);
+}
+
 static const MemoryRegionPortio ide_portio_list[] = {
     { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
     { 0, 1, 2, .read = ide_data_readw, .write = ide_data_writew },

diff --git a/include/hw/ide/internal.h b/include/hw/ide/internal.h
index 88dc11808b9e1626becf711d70a846a8984b4de1..482a9512bea93bede102ce85e85a33bbd1803e41 100644 (file)
--- a/include/hw/ide/internal.h
+++ b/include/hw/ide/internal.h
@@ -607,6 +607,7 @@ int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
                    uint32_t cylinders, uint32_t heads, uint32_t secs,
                    int chs_trans);
 void ide_init2(IDEBus *bus, qemu_irq irq);
+void ide_exit(IDEState *s);
 void ide_init_ioport(IDEBus *bus, ISADevice *isa, int iobase, int iobase2);
 void ide_register_restart_cb(IDEBus *bus);