ion userspace clients think that the cookie is a pointer, so they
use NULL to check if the handle has been initialized. Set the first
id number to 1.
Signed-off-by: Colin Cross <ccross@android.com>
[jstultz: modified patch to apply to staging directory]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rc = idr_pre_get(&client->idr, GFP_KERNEL);
if (!rc)
return -ENOMEM;
- rc = idr_get_new(&client->idr, handle, &id);
+ rc = idr_get_new_above(&client->idr, handle, 1, &id);
handle->id = id;
} while (rc == -EAGAIN);