diff options
Diffstat (limited to 'drivers/xen/xenbus/xenbus_dev_backend.c')
-rw-r--r-- | drivers/xen/xenbus/xenbus_dev_backend.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/xen/xenbus/xenbus_dev_backend.c b/drivers/xen/xenbus/xenbus_dev_backend.c index d73000800762..b17707ee07d4 100644 --- a/drivers/xen/xenbus/xenbus_dev_backend.c +++ b/drivers/xen/xenbus/xenbus_dev_backend.c @@ -1,3 +1,5 @@ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/slab.h> #include <linux/types.h> #include <linux/mm.h> @@ -70,22 +72,21 @@ static long xenbus_alloc(domid_t domid) return err; } -static long xenbus_backend_ioctl(struct file *file, unsigned int cmd, unsigned long data) +static long xenbus_backend_ioctl(struct file *file, unsigned int cmd, + unsigned long data) { if (!capable(CAP_SYS_ADMIN)) return -EPERM; switch (cmd) { - case IOCTL_XENBUS_BACKEND_EVTCHN: - if (xen_store_evtchn > 0) - return xen_store_evtchn; - return -ENODEV; - - case IOCTL_XENBUS_BACKEND_SETUP: - return xenbus_alloc(data); - - default: - return -ENOTTY; + case IOCTL_XENBUS_BACKEND_EVTCHN: + if (xen_store_evtchn > 0) + return xen_store_evtchn; + return -ENODEV; + case IOCTL_XENBUS_BACKEND_SETUP: + return xenbus_alloc(data); + default: + return -ENOTTY; } } @@ -128,7 +129,7 @@ static int __init xenbus_backend_init(void) err = misc_register(&xenbus_backend_dev); if (err) - printk(KERN_ERR "Could not register xenbus backend device\n"); + pr_err("Could not register xenbus backend device\n"); return err; } |