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path: root/drivers/acpi/acpi_platform.c
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Diffstat (limited to 'drivers/acpi/acpi_platform.c')
-rw-r--r--drivers/acpi/acpi_platform.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index fafec5ddf17f..1bde12708f9e 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -52,7 +52,7 @@ int acpi_create_platform_device(struct acpi_device *adev,
struct platform_device_info pdevinfo;
struct resource_list_entry *rentry;
struct list_head resource_list;
- struct resource *resources;
+ struct resource *resources = NULL;
int count;
/* If the ACPI node already has a physical device attached, skip it. */
@@ -61,20 +61,22 @@ int acpi_create_platform_device(struct acpi_device *adev,
INIT_LIST_HEAD(&resource_list);
count = acpi_dev_get_resources(adev, &resource_list, NULL, NULL);
- if (count <= 0)
+ if (count < 0) {
return 0;
+ } else if (count > 0) {
+ resources = kmalloc(count * sizeof(struct resource),
+ GFP_KERNEL);
+ if (!resources) {
+ dev_err(&adev->dev, "No memory for resources\n");
+ acpi_dev_free_resource_list(&resource_list);
+ return -ENOMEM;
+ }
+ count = 0;
+ list_for_each_entry(rentry, &resource_list, node)
+ resources[count++] = rentry->res;
- resources = kmalloc(count * sizeof(struct resource), GFP_KERNEL);
- if (!resources) {
- dev_err(&adev->dev, "No memory for resources\n");
acpi_dev_free_resource_list(&resource_list);
- return -ENOMEM;
}
- count = 0;
- list_for_each_entry(rentry, &resource_list, node)
- resources[count++] = rentry->res;
-
- acpi_dev_free_resource_list(&resource_list);
memset(&pdevinfo, 0, sizeof(pdevinfo));
/*