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driver core: Introduce device_create_groups

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device_create_groups lets callers create devices as well as associated
sysfs attributes with a single call. This avoids race conditions seen
if sysfs attributes on new devices are created later.

[fixed up comment block placement and add checks for printk buffer
formats - gregkh]

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Guenter Roeck
2013-07-14 16:05:57 -07:00
committed by Greg Kroah-Hartman
parent 388a8c353d
commit 39ef311204
2 changed files with 91 additions and 31 deletions
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include/linux/device.h
+5
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@@ -938,6 +938,11 @@ extern __printf(5, 6)
struct device *device_create(struct class *cls, struct device *parent,
dev_t devt, void *drvdata,
const char *fmt, ...);
extern __printf(6, 7)
struct device *device_create_with_groups(struct class *cls,
struct device *parent, dev_t devt, void *drvdata,
const struct attribute_group **groups,
const char *fmt, ...);
extern void device_destroy(struct class *cls, dev_t devt);
/*