diff options
Diffstat (limited to 'drivers/vhost/net.c')
| -rw-r--r-- | drivers/vhost/net.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 9777583218ff..0f41c9195e9b 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -593,17 +593,17 @@ static long vhost_net_ioctl(struct file *f, unsigned int ioctl, int r; switch (ioctl) { case VHOST_NET_SET_BACKEND: - r = copy_from_user(&backend, argp, sizeof backend); - if (r < 0) - return r; + if (copy_from_user(&backend, argp, sizeof backend)) + return -EFAULT; return vhost_net_set_backend(n, backend.index, backend.fd); case VHOST_GET_FEATURES: features = VHOST_FEATURES; - return copy_to_user(featurep, &features, sizeof features); + if (copy_to_user(featurep, &features, sizeof features)) + return -EFAULT; + return 0; case VHOST_SET_FEATURES: - r = copy_from_user(&features, featurep, sizeof features); - if (r < 0) - return r; + if (copy_from_user(&features, featurep, sizeof features)) + return -EFAULT; if (features & ~VHOST_FEATURES) return -EOPNOTSUPP; return vhost_net_set_features(n, features); @@ -642,7 +642,7 @@ static struct miscdevice vhost_net_misc = { &vhost_net_fops, }; -int vhost_net_init(void) +static int vhost_net_init(void) { int r = vhost_init(); if (r) @@ -659,7 +659,7 @@ err_init: } module_init(vhost_net_init); -void vhost_net_exit(void) +static void vhost_net_exit(void) { misc_deregister(&vhost_net_misc); vhost_cleanup(); |