File 0419-ide-core-add-cleanup-function.patch of Package qemu.8405

From 009ab01a2408282f3137d7d2117508bbcdc289ec Mon Sep 17 00:00:00 2001
From: Li Qiang <liq3ea@gmail.com>
Date: Wed, 15 Mar 2017 20:50:14 -0400
Subject: [PATCH] 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 a9342cc899..ef8405cf12 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -2246,6 +2246,14 @@ 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, 2, 2, .read = ide_data_readw, .write = ide_data_writew },
diff --git a/hw/ide/internal.h b/hw/ide/internal.h
index b03045b418..4b615541ff 100644
--- a/hw/ide/internal.h
+++ b/hw/ide/internal.h
@@ -554,6 +554,7 @@ int ide_init_drive(IDEState *s, BlockDriverState *bs, 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_exec_cmd(IDEBus *bus, uint32_t val);