friendly ping.. On 2021/3/22 10:43, Wu Bo wrote: > On 2021/3/21 23:29, Zhiqiang Liu wrote: >> From: Feilong Lin <linfeilong@xxxxxxxxxx> >> >> Repeated hot-plugging of pci devices for a virtual >> machine driven by virtio, we found that there is a >> leak in kmalloc-4k, which was confirmed as the memory >> of the pci_device structure. Then we found out that >> it was missing pci_dev_put() after pci_get_slot() in >> enable_slot() of acpiphp_glue.c. >> >> Signed-off-by: Feilong Lin <linfeilong@xxxxxxxxxx> >> Reviewed-by: Zhiqiang Liu <liuzhiqiang26@xxxxxxxxxx> >> --- >> drivers/pci/hotplug/acpiphp_glue.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c >> index 3365c93abf0e..f031302ad401 100644 >> --- a/drivers/pci/hotplug/acpiphp_glue.c >> +++ b/drivers/pci/hotplug/acpiphp_glue.c >> @@ -533,6 +533,7 @@ static void enable_slot(struct acpiphp_slot *slot, bool bridge) >> slot->flags &= ~SLOT_ENABLED; >> continue; >> } >> + pci_dev_put(dev); >> } >> } >> > Reviewed-by: Wu Bo <wubo40@xxxxxxxxxx> > > .
