From: Julia Lawall <julia@xxxxxxx> pci_get_class implicitly does a pci_dev_put on its second argument, so pci_dev_put is only needed if there is a break out of the loop. The semantic match detecting this problem is as follows: // <smpl> @@ expression dev; expression E; @@ * pci_dev_put(dev) ... when != dev = E ( * pci_get_device(...,dev) | * pci_get_device_reverse(...,dev) | * pci_get_subsys(...,dev) | * pci_get_class(...,dev) ) // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- diff -up a/drivers/char/agp/amd-k7-agp.c b/drivers/char/agp/amd-k7-agp.c --- a/drivers/char/agp/amd-k7-agp.c 2007-11-15 07:33:31.000000000 +0100 +++ b/drivers/char/agp/amd-k7-agp.c 2007-11-15 07:40:48.000000000 +0100 @@ -436,10 +436,6 @@ static int __devinit agp_amdk7_probe(str return -ENODEV; } cap_ptr = pci_find_capability(gfxcard, PCI_CAP_ID_AGP); - if (!cap_ptr) { - pci_dev_put(gfxcard); - continue; - } } /* With so many variants of NVidia cards, it's simpler just - To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html