From 9d50be820b662d0b13cef378ba14d7286f3dead5 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 22 Dec 2010 10:06:36 +0100 Subject: [PATCH] PCI: pci-stub: ignore zero-length id parameters commit 99a0fadf561e1f553c08f0a29f8b2578f55dd5f0 upstream. pci-stub uses strsep() to separate list of ids and generates a warning message when it fails to parse an id. However, not specifying the parameter results in ids set to an empty string. strsep() happily returns the empty string as the first token and thus triggers the warning message spuriously. Make the tokner ignore zero length ids. Reported-by: Chris Wright Reported-by: Prasad Joshi Signed-off-by: Jesse Barnes Signed-off-by: Paul Gortmaker --- drivers/pci/pci-stub.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/pci-stub.c b/drivers/pci/pci-stub.c index f7b68ca6cc98..4ae494bb1d50 100644 --- a/drivers/pci/pci-stub.c +++ b/drivers/pci/pci-stub.c @@ -54,6 +54,9 @@ static int __init pci_stub_init(void) subdevice = PCI_ANY_ID, class=0, class_mask=0; int fields; + if (!strlen(id)) + continue; + fields = sscanf(id, "%x:%x:%x:%x:%x:%x", &vendor, &device, &subvendor, &subdevice, &class, &class_mask); -- 2.39.5