diff mbox

[20/40] PCI: Fix a device reference count leakage issue in pci_dev_present()

Message ID 1348080894-23412-21-git-send-email-yinghai@kernel.org (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Yinghai Lu Sept. 19, 2012, 6:54 p.m. UTC 
From: Jiang Liu <jiang.liu@huawei.com>

Function pci_get_dev_by_id() will hold a reference count on the pci device
returned, so pci_dev_present() should release the corresponding reference
count to avoid memory leakage.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
---
 drivers/pci/search.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)
diff mbox

Patch

diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index bf969ba..d0627fa 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);