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-rw-r--r--net/nfc/nci/core.c5
1 files changed, 4 insertions, 1 deletions
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 @@ static void nci_tx_work(struct work_struct *work)
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),
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