diff options
| author | Li Qiang <liqiang6-s@360.cn> | 2017-02-07 18:42:55 -0800 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2017-02-21 08:11:42 +0100 |
| commit | d710e1e7bd3d5bfc26b631f02ae87901ebe646b0 (patch) | |
| tree | deb72b487c59b45b7b0aab2bb074fe291ddd12bb /hw/usb | |
| parent | 56f9e46b841c7be478ca038d8d4085d776ab4b0d (diff) | |
usb: ehci: fix memory leak in ehci
In usb_ehci_init function, it initializes 's->ipacket', but there
is no corresponding function to free this. As the ehci can be hotplug
and unplug, this will leak host memory leak. In order to make the
hierarchy clean, we should add a ehci pci finalize function, then call
the clean function in ehci device.
Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Message-id: 589a85b8.3c2b9d0a.b8e6.1434@mx.google.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/usb')
| -rw-r--r-- | hw/usb/hcd-ehci-pci.c | 9 | ||||
| -rw-r--r-- | hw/usb/hcd-ehci.c | 5 | ||||
| -rw-r--r-- | hw/usb/hcd-ehci.h | 1 |
3 files changed, 15 insertions, 0 deletions
diff --git a/hw/usb/hcd-ehci-pci.c b/hw/usb/hcd-ehci-pci.c index 56577051e2..6dedcb8989 100644 --- a/hw/usb/hcd-ehci-pci.c +++ b/hw/usb/hcd-ehci-pci.c @@ -89,6 +89,14 @@ static void usb_ehci_pci_init(Object *obj) usb_ehci_init(s, DEVICE(obj)); } +static void usb_ehci_pci_finalize(Object *obj) +{ + EHCIPCIState *i = PCI_EHCI(obj); + EHCIState *s = &i->ehci; + + usb_ehci_finalize(s); +} + static void usb_ehci_pci_exit(PCIDevice *dev) { EHCIPCIState *i = PCI_EHCI(dev); @@ -159,6 +167,7 @@ static const TypeInfo ehci_pci_type_info = { .parent = TYPE_PCI_DEVICE, .instance_size = sizeof(EHCIPCIState), .instance_init = usb_ehci_pci_init, + .instance_finalize = usb_ehci_pci_finalize, .abstract = true, .class_init = ehci_class_init, }; diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index 7622a3ae72..50ef817f93 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -2545,6 +2545,11 @@ void usb_ehci_init(EHCIState *s, DeviceState *dev) &s->mem_ports); } +void usb_ehci_finalize(EHCIState *s) +{ + usb_packet_cleanup(&s->ipacket); +} + /* * vim: expandtab ts=4 */ diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h index 3fd7038658..938d8aa284 100644 --- a/hw/usb/hcd-ehci.h +++ b/hw/usb/hcd-ehci.h @@ -323,6 +323,7 @@ struct EHCIState { extern const VMStateDescription vmstate_ehci; void usb_ehci_init(EHCIState *s, DeviceState *dev); +void usb_ehci_finalize(EHCIState *s); void usb_ehci_realize(EHCIState *s, DeviceState *dev, Error **errp); void usb_ehci_unrealize(EHCIState *s, DeviceState *dev, Error **errp); void ehci_reset(void *opaque); |