From 68b04f1f342d35d439f11b675c5adbcaa85a75be Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Wed, 13 May 2015 13:22:15 -0400 Subject: [PATCH] staging: unisys: Properly move version file into bus attr Simplify things by moving the version file handling into the core. Signed-off-by: Don Zickus Signed-off-by: Benjamin Romer Signed-off-by: Greg Kroah-Hartman --- drivers/staging/unisys/visorbus/visorbus_main.c | 66 +++++++++++-------------- 1 file changed, 30 insertions(+), 36 deletions(-) diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index a9cbaa6..1bad050 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -88,6 +88,35 @@ static int visorbus_uevent(struct device *xdev, struct kobj_uevent_env *env); static int visorbus_match(struct device *xdev, struct device_driver *xdrv); static void fix_vbus_dev_info(struct visor_device *visordev); +/* BUS type attributes + * + * define & implement display of bus attributes under + * /sys/bus/visorbus. + * + */ + +static ssize_t version_show(struct bus_type *bus, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", VERSION); +} + +static BUS_ATTR_RO(version); + +static struct attribute *visorbus_bus_attrs[] = { + &bus_attr_version.attr, + NULL, +}; + +static const struct attribute_group visorbus_bus_group = { + .attrs = visorbus_bus_attrs, +}; + +const struct attribute_group *visorbus_bus_groups[] = { + &visorbus_bus_group, + NULL, +}; + + /** This describes the TYPE of bus. * (Don't confuse this with an INSTANCE of the bus.) */ @@ -95,6 +124,7 @@ static struct bus_type visorbus_type = { .name = "visorbus", .match = visorbus_match, .uevent = visorbus_uevent, + .bus_groups = visorbus_bus_groups, }; static struct delayed_work periodic_work; @@ -609,37 +639,6 @@ void unregister_channel_attributes(struct visor_device *dev) #define to_visorbus_devdata(obj) \ container_of(obj, struct visorbus_devdata, dev) -/* BUS type attributes - * - * define & implement display of bus attributes under - * /sys/bus/visorbus. - * - */ - -static ssize_t -BUSTYPE_ATTR_version(struct bus_type *bus, char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%s\n", VERSION); -} - -static struct bus_attribute bustype_attr_version = -__ATTR(version, S_IRUGO, BUSTYPE_ATTR_version, NULL); - -static int -register_bustype_attributes(void) -{ - int rc = 0; - - rc = bus_create_file(&visorbus_type, &bustype_attr_version); - return rc; -} - -static void -unregister_bustype_attributes(void) -{ - bus_remove_file(&visorbus_type, &bustype_attr_version); -} - /* BUS instance attributes * * define & implement display of bus attributes under @@ -1580,10 +1579,6 @@ create_bus_type(void) visorbus_type.dev_attrs = visor_device_attrs; rc = bus_register(&visorbus_type); - if (rc < 0) - return rc; - - rc = register_bustype_attributes(); return rc; } @@ -1592,7 +1587,6 @@ create_bus_type(void) static void remove_bus_type(void) { - unregister_bustype_attributes(); bus_unregister(&visorbus_type); } -- 2.7.4