[PATCH] ACPI / memhotplug: Fix a stale pointer in error path

Toshi Kani
2013-07-10T16:47:57Z

device->driver_data needs to be cleared when releasing its data,
mem_device, in an error path of acpi_memory_device_add().

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
---
drivers/acpi/acpi_memhotplug.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index c711d11..999adb5 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -323,6 +323,7 @@ static int acpi_memory_device_add(struct acpi_device *device,
/* Get the range from the _CRS */
result = acpi_memory_get_device_resources(mem_device);
if (result) {
+ device->driver_data = NULL;
kfree(mem_device);
return result;
}