From: Ilan Elias <ilane@xxxxxx>
Check if NCI data flow control is used in nci_tx_work.
Signed-off-by: Ilan Elias <ilane@xxxxxx>
---
net/nfc/nci/core.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 9d0b530..056cd37 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -722,7 +722,9 @@ 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) != 0xff)
+ atomic_dec(&ndev->credits_cnt);
nfc_dbg("NCI TX: MT=data, PBF=%d, conn_id=%d, plen=%d",
nci_pbf(skb->data),
--
1.7.0.4
--
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