PCI: Fix reference count leak in pci_dev_present()

Function pci_get_dev_by_id() takes a reference on the pci_dev returned, so
pci_dev_present() should release the corresponding reference.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index bf969ba58e59..d0627fa9f368 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -319,13 +319,13 @@ int pci_dev_present(const struct pci_device_id *ids)
         WARN_ON(in_interrupt());
         while (ids->vendor || ids->subvendor || ids->class_mask) {
                 found = pci_get_dev_by_id(ids, NULL);
-                if (found)
-                        goto exit;
+                if (found) {
+                        pci_dev_put(found);
+                        return 1;
+                }
                 ids++;
         }
-exit:
-        if (found)
-                return 1;
+
         return 0;
 }
 EXPORT_SYMBOL(pci_dev_present);