File 0210-ide-core-add-cleanup-function.patch of Package qemu.19028

From: Li Qiang <liq3ea@gmail.com>
Date: Wed, 15 Mar 2017 20:50:14 -0400
Subject: 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>
(cherry picked from commit c9f086418a255f386e1c4d2c1418c032eb349537)
[BSC#1042801 CVE-2017-9373]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/ide/core.c     | 8 ++++++++
 hw/ide/internal.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/hw/ide/core.c b/hw/ide/core.c
index aa11f134d89c7e1c4fb8ede1c0c3..12ed0438c48cfacc8c6e55358e37 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -2585,6 +2585,14 @@ 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/hw/ide/internal.h b/hw/ide/internal.h
index d2c458f579db2a7bb5efc83cd249..c8d60b8e9f19d1b4dfffd203631b 100644
--- a/hw/ide/internal.h
+++ b/hw/ide/internal.h
@@ -604,6 +604,7 @@ 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);