NFC: st21nfcb: Fix st21nfcb_nci_close

When closing st21nfcb driver, flag ST21NFCB_NCI_RUNNING can be cleared
only once the ndlc and the transport (i2c or spi) layers are released.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/nfc/st21nfcb/st21nfcb.c

@@ -47,11 +47,13 @@ static int st21nfcb_nci_close(struct nci_dev *ndev)
 {
 	struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
 
-	if (!test_and_clear_bit(ST21NFCB_NCI_RUNNING, &info->flags))
+	if (!test_bit(ST21NFCB_NCI_RUNNING, &info->flags))
 		return 0;
 
 	ndlc_close(info->ndlc);
 
+	clear_bit(ST21NFCB_NCI_RUNNING, &info->flags);
+
 	return 0;
 }