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| author |   Johan Hovold <johan@kernel.org> | 2016-11-01 16:26:03 +0100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2016-11-14 20:05:59 +1100 |
| commit | 99e5cde5eae78bef95bfe7c16ccda87fb070149b (patch) | |
| tree | dfc7558e285e3fdd40984bc0a3e5521937d2c462 /drivers/pci/hotplug/rpadlpar_core.c | |
| parent | powerpc/vio: Clarify vio_find_node() reference counting (diff) | |
| download | wireguard-linux-99e5cde5eae78bef95bfe7c16ccda87fb070149b.tar.xz wireguard-linux-99e5cde5eae78bef95bfe7c16ccda87fb070149b.zip | |
powerpc/pci/rpadlpar: Fix device reference leaks
Make sure to drop any device reference taken by vio_find_node() when
adding and removing virtual I/O slots.
Fixes: 5eeb8c63a38f ("[PATCH] PCI Hotplug: rpaphp: Move VIO registration")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/pci/hotplug/rpadlpar_core.c')
| -rw-r--r-- | drivers/pci/hotplug/rpadlpar_core.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c index dc67f39779ec..c614ff7c3bc3 100644 --- a/drivers/pci/hotplug/rpadlpar_core.c +++ b/drivers/pci/hotplug/rpadlpar_core.c @@ -257,8 +257,13 @@ static int dlpar_add_phb(char *drc_name, struct device_node *dn) static int dlpar_add_vio_slot(char *drc_name, struct device_node *dn) { - if (vio_find_node(dn)) + struct vio_dev *vio_dev; + + vio_dev = vio_find_node(dn); + if (vio_dev) { + put_device(&vio_dev->dev); return -EINVAL; + } if (!vio_register_device_node(dn)) { printk(KERN_ERR @@ -334,6 +339,9 @@ static int dlpar_remove_vio_slot(char *drc_name, struct device_node *dn) return -EINVAL; vio_unregister_device(vio_dev); + + put_device(&vio_dev->dev); + return 0; } |