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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-03 14:37:15 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-03 14:37:15 -0400
commit542a086ac72fb193cbc1b996963a572269e57743 (patch)
treeb137c08037cca4ffc8a156a891a01113b3b8edce /drivers/uio
parent1d1fdd95df681f0c065d90ffaafa215a0e8825e2 (diff)
parent1eeeef153c02f5856ec109fa532eb5f31c39f85c (diff)
Merge tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg KH: "Here's the big driver core pull request for 3.12-rc1. Lots of tiny changes here fixing up the way sysfs attributes are created, to try to make drivers simpler, and fix a whole class race conditions with creations of device attributes after the device was announced to userspace. All the various pieces are acked by the different subsystem maintainers" * tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (119 commits) firmware loader: fix pending_fw_head list corruption drivers/base/memory.c: introduce help macro to_memory_block dynamic debug: line queries failing due to uninitialized local variable sysfs: sysfs_create_groups returns a value. debugfs: provide debugfs_create_x64() when disabled rbd: convert bus code to use bus_groups firmware: dcdbas: use binary attribute groups sysfs: add sysfs_create/remove_groups for when SYSFS is not enabled driver core: add #include <linux/sysfs.h> to core files. HID: convert bus code to use dev_groups Input: serio: convert bus code to use drv_groups Input: gameport: convert bus code to use drv_groups driver core: firmware: use __ATTR_RW() driver core: core: use DEVICE_ATTR_RO driver core: bus: use DRIVER_ATTR_WO() driver core: create write-only attribute macros for devices and drivers sysfs: create __ATTR_WO() driver-core: platform: convert bus code to use dev_groups workqueue: convert bus code to use dev_groups MEI: convert bus code to use dev_groups ...
Diffstat (limited to 'drivers/uio')
-rw-r--r--drivers/uio/uio.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 8abe78c0b16f..ba475632c5fa 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -223,38 +223,42 @@ static struct kobj_type portio_attr_type = {
223 .default_attrs = portio_attrs, 223 .default_attrs = portio_attrs,
224}; 224};
225 225
226static ssize_t show_name(struct device *dev, 226static ssize_t name_show(struct device *dev,
227 struct device_attribute *attr, char *buf) 227 struct device_attribute *attr, char *buf)
228{ 228{
229 struct uio_device *idev = dev_get_drvdata(dev); 229 struct uio_device *idev = dev_get_drvdata(dev);
230 return sprintf(buf, "%s\n", idev->info->name); 230 return sprintf(buf, "%s\n", idev->info->name);
231} 231}
232static DEVICE_ATTR_RO(name);
232 233
233static ssize_t show_version(struct device *dev, 234static ssize_t version_show(struct device *dev,
234 struct device_attribute *attr, char *buf) 235 struct device_attribute *attr, char *buf)
235{ 236{
236 struct uio_device *idev = dev_get_drvdata(dev); 237 struct uio_device *idev = dev_get_drvdata(dev);
237 return sprintf(buf, "%s\n", idev->info->version); 238 return sprintf(buf, "%s\n", idev->info->version);
238} 239}
240static DEVICE_ATTR_RO(version);
239 241
240static ssize_t show_event(struct device *dev, 242static ssize_t event_show(struct device *dev,
241 struct device_attribute *attr, char *buf) 243 struct device_attribute *attr, char *buf)
242{ 244{
243 struct uio_device *idev = dev_get_drvdata(dev); 245 struct uio_device *idev = dev_get_drvdata(dev);
244 return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event)); 246 return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event));
245} 247}
248static DEVICE_ATTR_RO(event);
246 249
247static struct device_attribute uio_class_attributes[] = { 250static struct attribute *uio_attrs[] = {
248 __ATTR(name, S_IRUGO, show_name, NULL), 251 &dev_attr_name.attr,
249 __ATTR(version, S_IRUGO, show_version, NULL), 252 &dev_attr_version.attr,
250 __ATTR(event, S_IRUGO, show_event, NULL), 253 &dev_attr_event.attr,
251 {} 254 NULL,
252}; 255};
256ATTRIBUTE_GROUPS(uio);
253 257
254/* UIO class infrastructure */ 258/* UIO class infrastructure */
255static struct class uio_class = { 259static struct class uio_class = {
256 .name = "uio", 260 .name = "uio",
257 .dev_attrs = uio_class_attributes, 261 .dev_groups = uio_groups,
258}; 262};
259 263
260/* 264/*