xen-pcifront: fix PCI reference leak
Stanse found that when pdev is found and has no driver a reference is
leaked in pcifront_common_process. So add pci_dev_put there. For the
pdev == NULL case, pci_dev_put(NULL) is fine.
[v2: Updated to not dereference pcidev->dev per Milton's observation]
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Milton Miller <miltonm@bga.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 0579273..3a5a6fc 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -575,8 +575,9 @@
pcidev = pci_get_bus_and_slot(bus, devfn);
if (!pcidev || !pcidev->driver) {
- dev_err(&pcidev->dev,
- "device or driver is NULL\n");
+ dev_err(&pdev->xdev->dev, "device or AER driver is NULL\n");
+ if (pcidev)
+ pci_dev_put(pcidev);
return result;
}
pdrv = pcidev->driver;