PCI: Make add_to_list() return status

Will be used for resource_list_x duplication when trying
requested+optional at first.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 9d932f4e4f98..0282fde43951 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,