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Date: Wed, 17 Nov 2010 12:10:40 -0800
From: Yinghai Lu <yinghai@kernel.org>
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To: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH] pci: Skip id checking if no id is passed
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Index: linux-2.6/drivers/pci/pci-stub.c
===================================================================
--- linux-2.6.orig/drivers/pci/pci-stub.c
+++ linux-2.6/drivers/pci/pci-stub.c
@@ -47,6 +47,10 @@ static int __init pci_stub_init(void)
 	if (rc)
 		return rc;
 
+	/* no ids passed actually */
+	if (ids[0] == '\0')
+		return 0;
+
 	/* add ids specified in the module parameter */
 	p = ids;
 	while ((id = strsep(&p, ","))) {