From 59566b6e8cc8f8a05022e0f01a1b90974003f092 Mon Sep 17 00:00:00 2001 From: Zhi Yong Wu Date: Sat, 7 Dec 2013 04:13:03 +0800 Subject: [PATCH] vhost: remove the dead branch Since vhost_dev_init() forever return 0, some branches are never run, therefore need to be removed. Signed-off-by: Zhi Yong Wu Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- drivers/vhost/net.c | 9 ++------- drivers/vhost/scsi.c | 7 +------ drivers/vhost/test.c | 8 +------- drivers/vhost/vhost.c | 4 +--- drivers/vhost/vhost.h | 2 +- 5 files changed, 6 insertions(+), 24 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 831eb4fd197d..9a68409580d5 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -683,7 +683,7 @@ static int vhost_net_open(struct inode *inode, struct file *f) struct vhost_net *n = kmalloc(sizeof *n, GFP_KERNEL); struct vhost_dev *dev; struct vhost_virtqueue **vqs; - int r, i; + int i; if (!n) return -ENOMEM; @@ -706,12 +706,7 @@ static int vhost_net_open(struct inode *inode, struct file *f) n->vqs[i].vhost_hlen = 0; n->vqs[i].sock_hlen = 0; } - r = vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX); - if (r < 0) { - kfree(n); - kfree(vqs); - return r; - } + vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX); vhost_poll_init(n->poll + VHOST_NET_VQ_TX, handle_tx_net, POLLOUT, dev); vhost_poll_init(n->poll + VHOST_NET_VQ_RX, handle_rx_net, POLLIN, dev); diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index f175629513ed..1e4c75c5b36b 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -1417,18 +1417,13 @@ static int vhost_scsi_open(struct inode *inode, struct file *f) vqs[i] = &vs->vqs[i].vq; vs->vqs[i].vq.handle_kick = vhost_scsi_handle_kick; } - r = vhost_dev_init(&vs->dev, vqs, VHOST_SCSI_MAX_VQ); + vhost_dev_init(&vs->dev, vqs, VHOST_SCSI_MAX_VQ); tcm_vhost_init_inflight(vs, NULL); - if (r < 0) - goto err_init; - f->private_data = vs; return 0; -err_init: - kfree(vqs); err_vqs: vhost_scsi_free(vs); err_vs: diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index 339eae85859a..c2a54fbf7f99 100644 --- a/drivers/vhost/test.c +++ b/drivers/vhost/test.c @@ -104,7 +104,6 @@ static int vhost_test_open(struct inode *inode, struct file *f) struct vhost_test *n = kmalloc(sizeof *n, GFP_KERNEL); struct vhost_dev *dev; struct vhost_virtqueue **vqs; - int r; if (!n) return -ENOMEM; @@ -117,12 +116,7 @@ static int vhost_test_open(struct inode *inode, struct file *f) dev = &n->dev; vqs[VHOST_TEST_VQ] = &n->vqs[VHOST_TEST_VQ]; n->vqs[VHOST_TEST_VQ].handle_kick = handle_vq_kick; - r = vhost_dev_init(dev, vqs, VHOST_TEST_VQ_MAX); - if (r < 0) { - kfree(vqs); - kfree(n); - return r; - } + vhost_dev_init(dev, vqs, VHOST_TEST_VQ_MAX); f->private_data = n; diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 69068e0d8f31..78987e481bc6 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -290,7 +290,7 @@ static void vhost_dev_free_iovecs(struct vhost_dev *dev) vhost_vq_free_iovecs(dev->vqs[i]); } -long vhost_dev_init(struct vhost_dev *dev, +void vhost_dev_init(struct vhost_dev *dev, struct vhost_virtqueue **vqs, int nvqs) { struct vhost_virtqueue *vq; @@ -319,8 +319,6 @@ long vhost_dev_init(struct vhost_dev *dev, vhost_poll_init(&vq->poll, vq->handle_kick, POLLIN, dev); } - - return 0; } EXPORT_SYMBOL_GPL(vhost_dev_init); diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 4465ed5f316d..35eeb2a1bada 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -127,7 +127,7 @@ struct vhost_dev { struct task_struct *worker; }; -long vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs, int nvqs); +void vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs, int nvqs); long vhost_dev_set_owner(struct vhost_dev *dev); bool vhost_dev_has_owner(struct vhost_dev *dev); long vhost_dev_check_owner(struct vhost_dev *); -- 2.30.2