From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Thu, 11 Jul 2013 15:03:38 +0000 (+0300)
Subject: wil6210: fix wrong index in wil_vring_free
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=4d1ac0721aae84eec3c8aa54c7574b14f79863bc;p=deliverable%2Flinux.git

wil6210: fix wrong index in wil_vring_free

When destroying Rx vring, branch for Rx used wrong Tx descriptor:
while SW context was taken for "head", HW descriptor was, by mistake,
taken from "tail"

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index d240b24e1ccf..8fde73aa6198 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -133,7 +133,7 @@ static void wil_vring_free(struct wil6210_priv *wil, struct vring *vring,
 		} else { /* rx */
 			struct vring_rx_desc dd, *d = &dd;
 			volatile struct vring_rx_desc *_d =
-					&vring->va[vring->swtail].rx;
+					&vring->va[vring->swhead].rx;
 
 			*d = *_d;
 			pa = wil_desc_addr(&d->dma.addr);