Add back missing pthread_mutex_lock. Handle all error cases in fmm_release. Change-Id: I8efa561ddadfd769cede5bf86300215ba3fb3dd1 Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> [ROCm/ROCR-Runtime commit: 4e766615d7]
4e766615d7