staging: r8188eu: convert ODM_ReadAndConfig_MAC_REG_8188E() to int

The function ODM_ReadAndConfig_MAC_REG_8188E() has return type
'enum HAL_STATUS'. Convert the return type to int and use common
kernel error logic. Return 0 on success and negative values on
failure. The goal is to get rid of enum HAL_STATUS in the end.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20220928144323.13164-2-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/HalHWImg8188E_MAC.c

@@ -131,7 +131,7 @@ static void odm_ConfigMAC_8188E(struct odm_dm_struct *pDM_Odm, u32 Addr, u8 Data
 	rtw_write8(pDM_Odm->Adapter, Addr, Data);
 }
 
-enum HAL_STATUS ODM_ReadAndConfig_MAC_REG_8188E(struct odm_dm_struct *dm_odm)
+int ODM_ReadAndConfig_MAC_REG_8188E(struct odm_dm_struct *dm_odm)
 {
 	#define READ_NEXT_PAIR(v1, v2, i) do { i += 2; v1 = array[i]; v2 = array[i + 1]; } while (0)
 
@@ -144,7 +144,6 @@ enum HAL_STATUS ODM_ReadAndConfig_MAC_REG_8188E(struct odm_dm_struct *dm_odm)
 	struct adapter *adapt =  dm_odm->Adapter;
 	struct xmit_frame	*pxmit_frame = NULL;
 	u8 bndy_cnt = 1;
-	enum HAL_STATUS rst = HAL_STATUS_SUCCESS;
 	hex += ODM_ITRF_USB << 8;
 	hex += ODM_CE << 16;
 	hex += 0xFF000000;
@@ -155,7 +154,7 @@ enum HAL_STATUS ODM_ReadAndConfig_MAC_REG_8188E(struct odm_dm_struct *dm_odm)
 		pxmit_frame = rtw_IOL_accquire_xmit_frame(adapt);
 		if (!pxmit_frame) {
 			pr_info("rtw_IOL_accquire_xmit_frame failed\n");
-			return HAL_STATUS_FAILURE;
+			return -ENOMEM;
 		}
 	}
 
@@ -206,8 +205,8 @@ enum HAL_STATUS ODM_ReadAndConfig_MAC_REG_8188E(struct odm_dm_struct *dm_odm)
 	if (biol) {
 		if (!rtl8188e_IOL_exec_cmds_sync(dm_odm->Adapter, pxmit_frame, 1000, bndy_cnt)) {
 			pr_info("~~~ MAC IOL_exec_cmds Failed !!!\n");
-			rst = HAL_STATUS_FAILURE;
+			return -1;
 		}
 	}
-	return rst;
+	return 0;
 }

drivers/staging/r8188eu/hal/rtl8188e_phycfg.c

@@ -323,7 +323,7 @@ s32 PHY_MACConfig8188E(struct adapter *Adapter)
 	/*  */
 	/*  Config MAC */
 	/*  */
-	if (HAL_STATUS_FAILURE == ODM_ReadAndConfig_MAC_REG_8188E(&pHalData->odmpriv))
+	if (ODM_ReadAndConfig_MAC_REG_8188E(&pHalData->odmpriv))
 		rtStatus = _FAIL;
 
 	/*  2010.07.13 AMPDU aggregation number B */

drivers/staging/r8188eu/include/HalHWImg8188E_MAC.h

@@ -7,7 +7,6 @@
 /******************************************************************************
 *                           MAC_REG.TXT
 ******************************************************************************/
-
-enum HAL_STATUS ODM_ReadAndConfig_MAC_REG_8188E(struct odm_dm_struct *pDM_Odm);
+int ODM_ReadAndConfig_MAC_REG_8188E(struct odm_dm_struct *pDM_Odm);
 
 #endif /*  end of HWIMG_SUPPORT */