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authorIlan Elias <ilane@ti.com>2011-11-09 12:09:16 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-11-11 12:32:50 -0500
commitdb98c829b70e0a313e627d1c63cf5a7087290e5c (patch)
treeddf1c3982c0a07ece89355675efd4464475cac57 /net/nfc
parentee4c64fb984e652c0d49d41d19d1b8e4576c3203 (diff)
downloadlinux-db98c829b70e0a313e627d1c63cf5a7087290e5c.tar.bz2
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>
Diffstat (limited to 'net/nfc')
-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 9d0b5305c36e..3dffcb3221cc 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),