3.13.11-ckt33 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ From: Suman Anna <s-anna@xxxxxx> commit c13f99b7e945dad5273a8b7ee230f4d1f22d3354 upstream. The virtio core uses a static ida named virtio_index_ida for assigning index numbers to virtio devices during registration. The ida core may allocate some internal idr cache layers and an ida bitmap upon any ida allocation, and all these layers are truely freed only upon the ida destruction. The virtio_index_ida is not destroyed at present, leading to a memory leak when using the virtio core as a module and atleast one virtio device is registered and unregistered. Fix this by invoking ida_destroy() in the virtio core module exit. Signed-off-by: Suman Anna <s-anna@xxxxxx> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx> Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx> --- drivers/virtio/virtio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index fed0ce1..64eba4f 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -249,6 +249,7 @@ static int virtio_init(void) static void __exit virtio_exit(void) { bus_unregister(&virtio_bus); + ida_destroy(&virtio_index_ida); } core_initcall(virtio_init); module_exit(virtio_exit); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html