Add groups field to struct miscdevice for passing the attribute groups
at device creation. In this way, the driver can avoid the manual call
of device_create_file() after the device registration, which is
basically a racy operation, in addition to the reduction of manual
device_remove_file() calls.
Signed-off-by: Takashi Iwai <ti...@suse.de>
---
drivers/char/misc.c | 5 +++--
include/linux/miscdevice.h | 2 ++
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index ffa97d261cf3..4b114073107b 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -205,8 +205,9 @@ int misc_register(struct miscdevice * misc)
dev = MKDEV(MISC_MAJOR, misc->minor);
- misc->this_device = device_create(misc_class, misc->parent, dev,
- misc, "%s", misc->name);
+ misc->this_device =
+ device_create_with_groups(misc_class, misc->parent, dev,
+ misc, misc->groups, "%s", misc->name);
if (IS_ERR(misc->this_device)) {
int i = DYNAMIC_MINORS - misc->minor - 1;
if (i < DYNAMIC_MINORS && i >= 0)
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index ee80dd7d9f60..819077c32690 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -52,6 +52,7 @@
#define MISC_DYNAMIC_MINOR 255
struct device;
+struct attribute_group;
struct miscdevice {
int minor;
@@ -60,6 +61,7 @@ struct miscdevice {
struct list_head list;
struct device *parent;
struct device *this_device;
+ const struct attribute_group **groups;
const char *nodename;
umode_t mode;
};
--
2.2.2
--
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