Pseudorandom binary sequence_Error Result Getting in XSDK

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#include <stdint.h>
#include <stdio.h>
#include "ap_cint.h"
 
int PRBS_Func(void)
{
 
  #pragma HLS INTERFACE s_axilite port=return bundle=a
   int start_state = 0xCD;     /* Any nonzero start state will work. */
   int lfsr = start_state;
   int bit;                    /*  8bit to allow bit<<7 later in the code */
   unsigned period = 0;
 
   do
{
    /* Using LFSR = taps: 8, 6, 5 and 4; feedback polynomial: x^8+ x^6 + x^5 + x^4 + 1 */
   bit  = ((lfsr >> 0) ^ (lfsr >> 2) ^ (lfsr >> 3) ^ (lfsr >> 4) ) & 1;
   lfsr =  (lfsr >> 1) | (bit << 7);
   ++period;
} while (lfsr != start_state);
   return 0;
}

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#include <stdio.h>
#include "platform.h"
#include "xuartlite.h"
#include "xparameters.h"
#include "xil_printf.h"
#include "stdlib.h"
#include "XPrbs_prj.h"
 
int main()
{
  init_platform();
  u32 Resulth;
  XPrbs_prj PRBS;
  XPrbs_prj  *PRBSPTR=&PRBS;
  XPrbs_prj_Initialize(PRBSPTR,XPAR_PRBS_PRJ_0_DEVICE_ID);
  XPrbs_prj_Start(PRBSPTR);
  while (!XPrbs_prj_IsDone(PRBSPTR));
  Resulth=XPrbs_prj_Get_return(PRBSPTR);
  xil_printf("[hw] Resulth = %d \r\n", Resulth);
  cleanup_platform();
  return Resulth;
}

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************************** Function Prototypes *****************************/
#ifndef __linux__
int XPrbs_prj_Initialize(XPrbs_prj *InstancePtr, u16 DeviceId);
XPrbs_prj_Config* XPrbs_prj_LookupConfig(u16 DeviceId);
int XPrbs_prj_CfgInitialize(XPrbs_prj *InstancePtr, XPrbs_prj_Config *ConfigPtr);
#else
int XPrbs_prj_Initialize(XPrbs_prj *InstancePtr, const char* InstanceName);
int XPrbs_prj_Release(XPrbs_prj *InstancePtr);
#endif
 
void XPrbs_prj_Start(XPrbs_prj *InstancePtr);
u32 XPrbs_prj_IsDone(XPrbs_prj *InstancePtr);
u32 XPrbs_prj_IsIdle(XPrbs_prj *InstancePtr);
u32 XPrbs_prj_IsReady(XPrbs_prj *InstancePtr);
void XPrbs_prj_EnableAutoRestart(XPrbs_prj *InstancePtr);
void XPrbs_prj_DisableAutoRestart(XPrbs_prj *InstancePtr);
u32 XPrbs_prj_Get_return(XPrbs_prj *InstancePtr);
 
 
void XPrbs_prj_InterruptGlobalEnable(XPrbs_prj *InstancePtr);
void XPrbs_prj_InterruptGlobalDisable(XPrbs_prj *InstancePtr);
void XPrbs_prj_InterruptEnable(XPrbs_prj *InstancePtr, u32 Mask);
void XPrbs_prj_InterruptDisable(XPrbs_prj *InstancePtr, u32 Mask);
void XPrbs_prj_InterruptClear(XPrbs_prj *InstancePtr, u32 Mask);
u32 XPrbs_prj_InterruptGetEnabled(XPrbs_prj *InstancePtr);
u32 XPrbs_prj_InterruptGetStatus(XPrbs_prj *InstancePtr);
 
#ifdef __cplusplus
}
#endif