NFC: Check if NCI data flow control is used
Check if NCI data flow control is used in nci_tx_work.
Signed-off-by: Ilan Elias <ilane@ti.com>
Acked-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 9d0b530..3dffcb3 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -722,7 +722,10 @@
if (!skb)
return;
- atomic_dec(&ndev->credits_cnt);
+ /* Check if data flow control is used */
+ if (atomic_read(&ndev->credits_cnt) !=
+ NCI_DATA_FLOW_CONTROL_NOT_USED)
+ atomic_dec(&ndev->credits_cnt);
nfc_dbg("NCI TX: MT=data, PBF=%d, conn_id=%d, plen=%d",
nci_pbf(skb->data),