diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/virtio_console.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 21b621343033..2f4f0b23ea00 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -711,6 +711,7 @@ static int port_fops_open(struct inode *inode, struct file *filp) { struct cdev *cdev = inode->i_cdev; struct port *port; + int ret; port = container_of(cdev, struct port, cdev); filp->private_data = port; @@ -719,14 +720,17 @@ static int port_fops_open(struct inode *inode, struct file *filp) * Don't allow opening of console port devices -- that's done * via /dev/hvc */ - if (is_console_port(port)) - return -ENXIO; + if (is_console_port(port)) { + ret = -ENXIO; + goto out; + } /* Allow only one process to open a particular port at a time */ spin_lock_irq(&port->inbuf_lock); if (port->guest_connected) { spin_unlock_irq(&port->inbuf_lock); - return -EMFILE; + ret = -EMFILE; + goto out; } port->guest_connected = true; @@ -745,6 +749,8 @@ static int port_fops_open(struct inode *inode, struct file *filp) send_control_msg(filp->private_data, VIRTIO_CONSOLE_PORT_OPEN, 1); return 0; +out: + return ret; } /* |