staging: rtl8712: r8712_parse_wpa2_ie(): Change return values

Change return values of function r8712_parse_wpa2_ie from
_SUCCESS/_FAIL to 0/-EINVAL.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/ieee80211.c

@@ -327,11 +327,11 @@ int r8712_parse_wpa2_ie(u8 *rsn_ie, int rsn_ie_len, int *group_cipher,
 
 	if (rsn_ie_len <= 0) {
 		/* No RSN IE - fail silently */
-		return _FAIL;
+		return -EINVAL;
 	}
 	if ((*rsn_ie != _WPA2_IE_ID_) ||
 	    (*(rsn_ie + 1) != (u8)(rsn_ie_len - 2)))
-		return _FAIL;
+		return -EINVAL;
 	pos = rsn_ie;
 	pos += 4;
 	left = rsn_ie_len - 4;
@@ -341,7 +341,7 @@ int r8712_parse_wpa2_ie(u8 *rsn_ie, int rsn_ie_len, int *group_cipher,
 		pos += RSN_SELECTOR_LEN;
 		left -= RSN_SELECTOR_LEN;
 	} else if (left > 0) {
-		return _FAIL;
+		return -EINVAL;
 	}
 	/*pairwise_cipher*/
 	if (left >= 2) {
@@ -349,16 +349,16 @@ int r8712_parse_wpa2_ie(u8 *rsn_ie, int rsn_ie_len, int *group_cipher,
 		pos += 2;
 		left -= 2;
 		if (count == 0 || left < count * RSN_SELECTOR_LEN)
-			return _FAIL;
+			return -EINVAL;
 		for (i = 0; i < count; i++) {
 			*pairwise_cipher |= r8712_get_wpa2_cipher_suite(pos);
 			pos += RSN_SELECTOR_LEN;
 			left -= RSN_SELECTOR_LEN;
 		}
 	} else if (left == 1) {
-		return _FAIL;
+		return -EINVAL;
 	}
-	return _SUCCESS;
+	return 0;
 }
 
 int r8712_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len,

drivers/staging/rtl8712/rtl871x_ioctl_linux.c

@@ -503,7 +503,7 @@ static int r871x_set_wpa_ie(struct _adapter *padapter, char *pie,
 				  Ndis802_11AuthModeWPAPSK;
 		}
 		if (r8712_parse_wpa2_ie(buf, ielen, &group_cipher,
-		    &pairwise_cipher) == _SUCCESS) {
+		    &pairwise_cipher) == 0) {
 			padapter->securitypriv.AuthAlgrthm = 2;
 			padapter->securitypriv.ndisauthtype =
 				  Ndis802_11AuthModeWPA2PSK;