test_dev_config_update_uint

Name:test_dev_config_update_uint_sync

Proto:static int test_dev_config_update_uint_sync(struct kmod_test_device *test_dev, const char *buf, size_t size, unsigned int *config, int (*test_sync)(struct kmod_test_device *test_dev))

Type:int

Parameter:

Type	Parameter	Name
struct kmod_test_device *	test_dev
const char *	buf
size_t	size
unsigned int *	config
int (*	test_sync

883

ret = kstrtoul - convert a string to an unsigned long*@s: The start of the string. The string must be null-terminated, and may also* include a single newline before its terminating null. The first character* may also be a plus sign, but not a minus sign.

884

If ret Then Return ret

887

If new > UINT_MAX Then Return -EINVAL

890

mutex_lock( & config_mutex)

892

old_val = config

893

config = new

895

ret = test_sync(test_dev)

896

If ret Then

897

config = old_val

899

ret = test_sync(test_dev)

900

WARN_ON(ret)

902

mutex_unlock( & config_mutex)

903

Return -EINVAL

906

mutex_unlock( & config_mutex)

908

Return size

**Caller**
Name	Describe
config_num_threads_store

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Function report