staging: rtl8712: r8712_set_key(): Change return values

Change return values of r8712_set_key from _SUCCESS and _FAIL to 0 and
-ENOMEM or -EINVAL, as the case may require.
Modify return statements and return variable accordingly.
Change return type from sint to int.
As there is only one site where the return value is used, update that
call site according to the change in the return values.

Signed-off-by: Nishka Dasgupta <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/rtl8712/rtl871x_ioctl_set.c

···
 		wep->KeyLength);
 	psecuritypriv->DefKeylen[keyid] = wep->KeyLength;
 	psecuritypriv->PrivacyKeyIndex = keyid;
-	if (r8712_set_key(padapter, psecuritypriv, keyid) == _FAIL)
+	if (r8712_set_key(padapter, psecuritypriv, keyid))
 		return false;
 	return _SUCCESS;
 }

drivers/staging/rtl8712/rtl871x_mlme.c

···
 	return 0;
 }
 
-sint r8712_set_key(struct _adapter *adapter,
-		   struct security_priv *psecuritypriv,
-	     sint keyid)
+int r8712_set_key(struct _adapter *adapter,
+		  struct security_priv *psecuritypriv,
+		  sint keyid)
 {
 	struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
 	struct cmd_obj *pcmd;
 	struct setkey_parm *psetkeyparm;
 	u8 keylen;
-	sint ret = _SUCCESS;
+	int ret;
 
 	pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
 	if (!pcmd)
-		return _FAIL;
+		return -ENOMEM;
 	psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
 	if (!psetkeyparm) {
-		ret = _FAIL;
+		ret = -ENOMEM;
 		goto err_free_cmd;
 	}
 	if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
···
 		break;
 	case _TKIP_:
 		if (keyid < 1 || keyid > 2) {
-			ret = _FAIL;
+			ret = -EINVAL;
 			goto err_free_parm;
 		}
 		keylen = 16;
···
 		break;
 	case _AES_:
 		if (keyid < 1 || keyid > 2) {
-			ret = _FAIL;
+			ret = -EINVAL;
 			goto err_free_parm;
 		}
 		keylen = 16;
···
 		psetkeyparm->grpkey = 1;
 		break;
 	default:
-		ret = _FAIL;
+		ret = -EINVAL;
 		goto err_free_parm;
 	}
 	pcmd->cmdcode = _SetKey_CMD_;
···
 	pcmd->rspsz = 0;
 	INIT_LIST_HEAD(&pcmd->list);
 	r8712_enqueue_cmd(pcmdpriv, pcmd);
-	return ret;
+	return 0;
 
 err_free_parm:
 	kfree(psetkeyparm);

drivers/staging/rtl8712/rtl871x_mlme.h

···
 int r8712_init_mlme_priv(struct _adapter *adapter);
 void r8712_free_mlme_priv(struct mlme_priv *pmlmepriv);
 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv);
-sint r8712_set_key(struct _adapter *adapter,
-		   struct security_priv *psecuritypriv, sint keyid);
+int r8712_set_key(struct _adapter *adapter,
+		  struct security_priv *psecuritypriv, sint keyid);
 int r8712_set_auth(struct _adapter *adapter,
 		   struct security_priv *psecuritypriv);
 uint r8712_get_wlan_bssid_ex_sz(struct wlan_bssid_ex *bss);