virtio_ring: plug kmemleak false positive.

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / virtio / virtio_ring.c

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 6b4a4db..6547d46 100644 (file)
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -173,6 +173,8 @@ static inline int vring_add_indirect(struct vring_virtqueue *vq,
        head = vq->free_head;
        vq->vring.desc[head].flags = VRING_DESC_F_INDIRECT;
        vq->vring.desc[head].addr = virt_to_phys(desc);
+       /* kmemleak gives a false positive, as it's hidden by virt_to_phys */
+       kmemleak_ignore(desc);
        vq->vring.desc[head].len = i * sizeof(struct vring_desc);
 
        /* Update free pointer */