Check that vringh_config is not NULL before using it.
Signed-off-by: Sjur Brændeland <[email protected]>
---
Hi,
This patch applies to Rusty's virtio-next branch.
Thanks,
Sjur
drivers/net/caif/caif_virtio.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c
index fb80765..316b184 100644
--- a/drivers/net/caif/caif_virtio.c
+++ b/drivers/net/caif/caif_virtio.c
@@ -670,6 +670,10 @@ static int cfv_probe(struct virtio_device *vdev)
spin_lock_init(&cfv->tx_lock);
/* Get the RX virtio ring. This is a "host side vring". */
+ err = -ENODEV;
+ if (!vdev->vringh_config || !vdev->vringh_config->find_vrhs)
+ goto err;
+
err = vdev->vringh_config->find_vrhs(vdev, 1, &cfv->vr_rx, &vrh_cbs);
if (err)
goto err;
--
1.7.9.5
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