linux-kernel - [PATCH 02/21] PCI: Make add_to

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Date:	Sat, 21 Jan 2012 02:08:18 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	Ram Pai <linuxram@...ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 02/21] PCI: Make add_to_list() return status

will be used for resource_list_x duplication for try requested+optional at first.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
---
 drivers/pci/setup-bus.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 9d932f4..0282fde 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -64,7 +64,7 @@ void pci_realloc(void)
  * @add_size:	additional size to be optionally added
  *              to the resource
  */
-static void add_to_list(struct resource_list_x *head,
+static int add_to_list(struct resource_list_x *head,
 		 struct pci_dev *dev, struct resource *res,
 		 resource_size_t add_size, resource_size_t min_align)
 {
@@ -75,7 +75,7 @@ static void add_to_list(struct resource_list_x *head,
 	tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
 	if (!tmp) {
 		pr_warning("add_to_list: kmalloc() failed!\n");
-		return;
+		return -ENOMEM;
 	}
 
 	tmp->next = ln;
@@ -87,6 +87,8 @@ static void add_to_list(struct resource_list_x *head,
 	tmp->add_size = add_size;
 	tmp->min_align = min_align;
 	list->next = tmp;
+
+	return 0;
 }
 
 static void add_to_failed_list(struct resource_list_x *head,
-- 
1.7.7

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