linux-kernel - [PATCH 09/17] x86/PCI: Remove unnecessary list_empty(&pci_root

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Message-ID: <20140129181833.15476.93146.stgit@bhelgaas-glaptop.roam.corp.google.com>
Date:	Wed, 29 Jan 2014 11:18:33 -0700
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	linux-pci@...r.kernel.org
Cc:	linux-acpi@...r.kernel.org, x86@...nel.org,
	linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 09/17] x86/PCI: Remove unnecessary
 list_empty(&pci_root_infos) check

list_for_each_entry() handles empty lists, so there's no need to check
whether the list is empty first.

Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
 arch/x86/pci/bus_numa.c |    3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c
index 2e36a4469549..f3a2cfc14125 100644
--- a/arch/x86/pci/bus_numa.c
+++ b/arch/x86/pci/bus_numa.c
@@ -10,9 +10,6 @@ static struct pci_root_info *x86_find_pci_root_info(int bus)
 {
 	struct pci_root_info *info;
 
-	if (list_empty(&pci_root_infos))
-		return NULL;
-
 	list_for_each_entry(info, &pci_root_infos, list)
 		if (info->busn.start == bus)
 			return info;

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