diff options
Diffstat (limited to 'drivers/xen/xenbus')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_client.c | 9 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 6 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.h | 4 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe_backend.c | 8 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe_frontend.c | 8 |
5 files changed, 21 insertions, 14 deletions
diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c index 439c9dca9eee..ca744102b666 100644 --- a/drivers/xen/xenbus/xenbus_client.c +++ b/drivers/xen/xenbus/xenbus_client.c @@ -259,7 +259,6 @@ static char *error_path(struct xenbus_device *dev) static void xenbus_va_dev_error(struct xenbus_device *dev, int err, const char *fmt, va_list ap) { - int ret; unsigned int len; char *printf_buffer = NULL; char *path_buffer = NULL; @@ -270,9 +269,7 @@ static void xenbus_va_dev_error(struct xenbus_device *dev, int err, goto fail; len = sprintf(printf_buffer, "%i ", -err); - ret = vsnprintf(printf_buffer+len, PRINTF_BUFFER_SIZE-len, fmt, ap); - - BUG_ON(len + ret > PRINTF_BUFFER_SIZE-1); + vsnprintf(printf_buffer+len, PRINTF_BUFFER_SIZE-len, fmt, ap); dev_err(&dev->dev, "%s\n", printf_buffer); @@ -361,8 +358,8 @@ static void xenbus_switch_fatal(struct xenbus_device *dev, int depth, int err, * @ring_mfn: mfn of ring to grant * Grant access to the given @ring_mfn to the peer of the given device. Return - * 0 on success, or -errno on error. On error, the device will switch to - * XenbusStateClosing, and the error will be saved in the store. + * a grant reference on success, or -errno on error. On error, the device will + * switch to XenbusStateClosing, and the error will be saved in the store. */ int xenbus_grant_ring(struct xenbus_device *dev, unsigned long ring_mfn) { diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 3c0a74b3e9b1..564b31584860 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -297,9 +297,13 @@ void xenbus_dev_shutdown(struct device *_dev) EXPORT_SYMBOL_GPL(xenbus_dev_shutdown); int xenbus_register_driver_common(struct xenbus_driver *drv, - struct xen_bus_type *bus) + struct xen_bus_type *bus, + struct module *owner, const char *mod_name) { + drv->driver.name = drv->name ? drv->name : drv->ids[0].devicetype; drv->driver.bus = &bus->bus; + drv->driver.owner = owner; + drv->driver.mod_name = mod_name; return driver_register(&drv->driver); } diff --git a/drivers/xen/xenbus/xenbus_probe.h b/drivers/xen/xenbus/xenbus_probe.h index 1085ec294a19..c9ec7ca1f7ab 100644 --- a/drivers/xen/xenbus/xenbus_probe.h +++ b/drivers/xen/xenbus/xenbus_probe.h @@ -60,7 +60,9 @@ extern int xenbus_match(struct device *_dev, struct device_driver *_drv); extern int xenbus_dev_probe(struct device *_dev); extern int xenbus_dev_remove(struct device *_dev); extern int xenbus_register_driver_common(struct xenbus_driver *drv, - struct xen_bus_type *bus); + struct xen_bus_type *bus, + struct module *owner, + const char *mod_name); extern int xenbus_probe_node(struct xen_bus_type *bus, const char *type, const char *nodename); diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c index 5125dce11a60..04f7f85a5edf 100644 --- a/drivers/xen/xenbus/xenbus_probe_backend.c +++ b/drivers/xen/xenbus/xenbus_probe_backend.c @@ -234,13 +234,15 @@ int xenbus_dev_is_online(struct xenbus_device *dev) } EXPORT_SYMBOL_GPL(xenbus_dev_is_online); -int xenbus_register_backend(struct xenbus_driver *drv) +int __xenbus_register_backend(struct xenbus_driver *drv, struct module *owner, + const char *mod_name) { drv->read_otherend_details = read_frontend_details; - return xenbus_register_driver_common(drv, &xenbus_backend); + return xenbus_register_driver_common(drv, &xenbus_backend, + owner, mod_name); } -EXPORT_SYMBOL_GPL(xenbus_register_backend); +EXPORT_SYMBOL_GPL(__xenbus_register_backend); static int backend_probe_and_watch(struct notifier_block *notifier, unsigned long event, diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c index cb385c10d2b1..bcb53bdc469c 100644 --- a/drivers/xen/xenbus/xenbus_probe_frontend.c +++ b/drivers/xen/xenbus/xenbus_probe_frontend.c @@ -317,13 +317,15 @@ static void wait_for_devices(struct xenbus_driver *xendrv) print_device_status); } -int xenbus_register_frontend(struct xenbus_driver *drv) +int __xenbus_register_frontend(struct xenbus_driver *drv, struct module *owner, + const char *mod_name) { int ret; drv->read_otherend_details = read_backend_details; - ret = xenbus_register_driver_common(drv, &xenbus_frontend); + ret = xenbus_register_driver_common(drv, &xenbus_frontend, + owner, mod_name); if (ret) return ret; @@ -332,7 +334,7 @@ int xenbus_register_frontend(struct xenbus_driver *drv) return 0; } -EXPORT_SYMBOL_GPL(xenbus_register_frontend); +EXPORT_SYMBOL_GPL(__xenbus_register_frontend); static DECLARE_WAIT_QUEUE_HEAD(backend_state_wq); static int backend_state; |
