318 		mutex_enter(&sbbcsoftp->umutex);  in sbbc_attach()
320 			mutex_exit(&sbbcsoftp->umutex);  in sbbc_attach()
324 		mutex_exit(&sbbcsoftp->umutex);  in sbbc_attach()
370 	mutex_init(&sbbcsoftp->umutex, NULL, MUTEX_DRIVER, (void *)NULL);  in sbbc_attach()
441 	mutex_destroy(&sbbcsoftp->umutex);  in sbbc_attach()
474 		mutex_enter(&sbbcsoftp->umutex);  in sbbc_detach()
476 			mutex_exit(&sbbcsoftp->umutex);  in sbbc_detach()
480 		mutex_exit(&sbbcsoftp->umutex);  in sbbc_detach()
496 	mutex_destroy(&sbbcsoftp->umutex);  in sbbc_detach()
1082 	mutex_enter(&sbbcsoftp->umutex);  in sbbc_open()
1086 		mutex_exit(&sbbcsoftp->umutex);  in sbbc_open()
1091 	mutex_exit(&sbbcsoftp->umutex);  in sbbc_open()
1110 	mutex_enter(&sbbcsoftp->umutex);  in sbbc_close()
1116 	mutex_exit(&sbbcsoftp->umutex);  in sbbc_close()