diff options
Diffstat (limited to 'drivers/xen/xenbus/xenbus_comms.c')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_comms.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/xen/xenbus/xenbus_comms.c b/drivers/xen/xenbus/xenbus_comms.c index 2eff7a6aaa2..fdb0f339d0a 100644 --- a/drivers/xen/xenbus/xenbus_comms.c +++ b/drivers/xen/xenbus/xenbus_comms.c @@ -30,6 +30,8 @@ * IN THE SOFTWARE. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/wait.h> #include <linux/interrupt.h> #include <linux/sched.h> @@ -205,13 +207,12 @@ int xb_init_comms(void) struct xenstore_domain_interface *intf = xen_store_interface; if (intf->req_prod != intf->req_cons) - printk(KERN_ERR "XENBUS request ring is not quiescent " - "(%08x:%08x)!\n", intf->req_cons, intf->req_prod); + pr_err("request ring is not quiescent (%08x:%08x)!\n", + intf->req_cons, intf->req_prod); if (intf->rsp_prod != intf->rsp_cons) { - printk(KERN_WARNING "XENBUS response ring is not quiescent " - "(%08x:%08x): fixing up\n", - intf->rsp_cons, intf->rsp_prod); + pr_warn("response ring is not quiescent (%08x:%08x): fixing up\n", + intf->rsp_cons, intf->rsp_prod); /* breaks kdump */ if (!reset_devices) intf->rsp_cons = intf->rsp_prod; @@ -224,8 +225,8 @@ int xb_init_comms(void) int err; err = bind_evtchn_to_irqhandler(xen_store_evtchn, wake_waiting, 0, "xenbus", &xb_waitq); - if (err <= 0) { - printk(KERN_ERR "XENBUS request irq failed %i\n", err); + if (err < 0) { + pr_err("request irq failed %i\n", err); return err; } @@ -234,3 +235,9 @@ int xb_init_comms(void) return 0; } + +void xb_deinit_comms(void) +{ + unbind_from_irqhandler(xenbus_irq, &xb_waitq); + xenbus_irq = 0; +} |