diff options
| author | Sjur Brændeland <sjur.brandeland@stericsson.com> | 2013-03-24 04:49:59 +0100 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2013-03-24 04:59:15 +0100 |
| commit | a8c7687bf21603af6246e55cc58f98e42241bd01 (patch) | |
| tree | 5dad9b5fffcf702947f6c1b83b2b4e28c8bd970e /drivers/net/caif | |
| parent | caif_virtio: Use vringh_notify_enable correctly (diff) | |
| download | linux-a8c7687bf21603af6246e55cc58f98e42241bd01.tar.xz linux-a8c7687bf21603af6246e55cc58f98e42241bd01.zip | |
caif_virtio: Check that vringh_config is not null
Check that vringh_config is not NULL before using it.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/net/caif')
| -rw-r--r-- | drivers/net/caif/caif_virtio.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c index fb80765e258e..316b184ea130 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; |