Dexuan Cui 05f151a73e PCI: hv: Fix a memory leak in hv_eject_device_work() ... When a device is created in new_pcichild_device(), hpdev->refs is set to 2 (i.e. the initial value of 1 plus the get_pcichild()). When we hot remove the device from the host, in a Linux VM we first call hv_pci_eject_device(), which increases hpdev->refs by get_pcichild() and then schedules a work of hv_eject_device_work(), so hpdev->refs becomes 3 (let's ignore the paired get/put_pcichild() in other places). But in hv_eject_device_work(), currently we only call put_pcichild() twice, meaning the 'hpdev' struct can't be freed in put_pcichild(). Add one put_pcichild() to fix the memory leak. The device can also be removed when we run "rmmod pci-hyperv". On this path (hv_pci_remove() -> hv_pci_bus_exit() -> hv_pci_devices_present()), hpdev->refs is 2, and we do correctly call put_pcichild() twice in pci_devices_present_work(). Fixes: 4daace0d8c ("PCI: hv: Add paravirtual PCI front-end for Microsoft Hyper-V VMs") Signed-off-by: Dexuan Cui <decui@microsoft.com> [lorenzo.pieralisi@arm.com: commit log rework] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Cc: stable@vger.kernel.org		2019-03-26 19:12:08 +00:00
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controller	PCI: hv: Fix a memory leak in hv_eject_device_work()	2019-03-26 19:12:08 +00:00
endpoint
hotplug	Merge branch 'pci/pm'	2019-03-06 15:30:15 -06:00
pcie	Merge branch 'pci/pm'	2019-03-06 15:30:15 -06:00
switch
access.c
ats.c
bus.c
ecam.c
host-bridge.c
iov.c
irq.c
Kconfig
Makefile
mmap.c	PCI: Tidy comments	2018-03-19 14:20:43 -05:00
msi.c
of.c
p2pdma.c
pci-acpi.c
pci-bridge-emul.c
pci-bridge-emul.h
pci-driver.c
pci-label.c
pci-mid.c
pci-pf-stub.c
pci-stub.c
pci-sysfs.c
pci.c	pci-v5.1-changes	2019-03-09 14:57:08 -08:00
pci.h
probe.c	Merge branch 'pci/enumeration'	2019-03-06 15:30:11 -06:00
proc.c
quirks.c	pci-v5.1-changes	2019-03-09 14:57:08 -08:00
remove.c
rom.c
search.c
setup-bus.c
setup-irq.c
setup-res.c
slot.c
syscall.c
vc.c
vpd.c
xen-pcifront.c