rtlwifi: Assign rx buffer ownership to hardware last
Ownership of an rx buffer should only be given to the hardware
after all other changes are written, otherwise there's
a potential race.
Signed-off-by: Mike McCormack <mikem@ring3k.org>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 6c1b9df..e29feef 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -784,8 +784,6 @@
rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false,
HW_DESC_RXBUFF_ADDR,
(u8 *)&bufferaddress);
- rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN,
- (u8 *)&tmp_one);
rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
HW_DESC_RXPKT_LEN,
(u8 *)&rtlpci->rxbuffersize);
@@ -795,6 +793,9 @@
HW_DESC_RXERO,
(u8 *)&tmp_one);
+ rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN,
+ (u8 *)&tmp_one);
+
index = (index + 1) % rtlpci->rxringcount;
}