mutex_init Return Values

mutex_init() returns 0 if successful. When any of the following conditions is detected, mutex_init() fails and returns the corresponding value.

EFAULT

Description:

mp points to an illegal address.

EINVAL

Description:

The value specified by mp is invalid.

ENOMEM

Description:

System has insufficient memory to initialize the mutex.

EAGAIN

Description:

System has insufficient resources to initialize the mutex.

EBUSY

Description:

System detected an attempt to reinitialize an active mutex.