209 	if (kIOReturnSuccess != setSpecification(outSegFunc, segmentOptions,  in initWithSpecification()
343 	return kIOReturnSuccess;  in setSpecification()
395 	IOReturn err = kIOReturnSuccess;  in setMemoryDescriptor()
403 		return kIOReturnSuccess;  in setMemoryDescriptor()
467 	return kIOReturnSuccess;  in clearMemoryDescriptor()
548 		return kIOReturnSuccess;  in segmentOp()
615 	return kIOReturnSuccess;  in segmentOp()
631 	IOReturn     ret = kIOReturnSuccess;  in walkAll()
692 					ret = kIOReturnSuccess;  in walkAll()
729 					ret = (bytes == state->fPreparedLength) ? kIOReturnSuccess : kIOReturnUnderrun;  in walkAll()
731 					ret = kIOReturnSuccess;  in walkAll()
793 	if (kIOReturnSuccess != ret) {  in prepareWithSpecification()
835 	IOReturn                  ret = kIOReturnSuccess;  in prepare()
924 			if ((kIOReturnSuccess == ret)  in prepare()
957 						assert(kIOReturnSuccess == ret);  in prepare()
958 						if (ret != kIOReturnSuccess) {  in prepare()
964 					if (ret != kIOReturnSuccess) {  in prepare()
999 						if (ret != kIOReturnSuccess) {  in prepare()
1039 			if (kIOReturnSuccess == ret) {  in prepare()
1045 		if (kIOReturnSuccess == ret) {  in prepare()
1056 	IOReturn               ret   = kIOReturnSuccess;  in complete()
1131 	return kIOReturnSuccess;  in getPreparedOffsetAndLength()
1138 	IOReturn               ret   = kIOReturnSuccess;  in synchronize()
1152 			return kIOReturnSuccess;  in synchronize()
1161 		return kIOReturnSuccess;  in synchronize()
1226 	return context->remaining ? kIOReturnSuccess : kIOReturnOverrun;  in transferSegment()
1286 	IOReturn               ret  = kIOReturnSuccess;  in genIOVMSegments()
1349 					rtn = kIOReturnSuccess;  in genIOVMSegments()
1407 					rtn = kIOReturnSuccess;  in genIOVMSegments()
1422 			    && (rtn == kIOReturnSuccess)  in genIOVMSegments()
1444 			if (rtn == kIOReturnSuccess) {  in genIOVMSegments()
1607 			if (kIOReturnSuccess != ret) {  in genIOVMSegments()
1622 	if (kIOReturnSuccess == ret) {  in genIOVMSegments()
1636 	IOReturn ret = kIOReturnSuccess;  in clientOutputSegment()