ACPI / event: remove unneeded NULL pointer check

nla_data() cannot return NULL as it simply adds NLA_HDRLEN to the
passed pointer. The NULL pointer check is therefore superfluous.
Remove it.

Found by smatch:
  drivers/acpi/event.c:130 acpi_bus_generate_netlink_event() warn: can
  'event' even be NULL?

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 8247fcdde0795b37377bdec44d6271ca16ad225d..fdef416c0ff6f0384e107466b47b1ff8f2bac9aa 100644 (file)
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -127,11 +127,6 @@ int acpi_bus_generate_netlink_event(const char *device_class,
        }
 
        event = nla_data(attr);
-       if (!event) {
-               nlmsg_free(skb);
-               return -EINVAL;
-       }
-
        memset(event, 0, sizeof(struct acpi_genl_event));
 
        strcpy(event->device_class, device_class);