[PATCH] staging: vt6655: Fix TX retransmission race condition

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



With high tx flow the same buffer can transmit  more than
once and get stuck in loop.

Reset TCR to zero in device_tx_srv.

Signed-off-by: Malcolm Priestley <tvboxspy@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v3.19+
---
 drivers/staging/vt6655/device_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index c5f8233..9b5d840 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -963,6 +963,9 @@ static int device_tx_srv(struct vnt_private *pDevice, unsigned int uIdx)
 			vnt_int_report_rate(pDevice, pTD->pTDInfo, byTsr0, byTsr1);
 
 			device_free_tx_buf(pDevice, pTD);
+
+			/* Done with TCR reset to avoid retransmission */
+			pTD->m_td1TD1.byTCR = 0;
 			pDevice->iTDUsed[uIdx]--;
 		}
 	}
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]