Commit febc9fe5 authored by Mike McCormack's avatar Mike McCormack Committed by John W. Linville

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: default avatarMike McCormack <mikem@ring3k.org>
Signed-off-by: default avatarLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 312d5479
...@@ -784,8 +784,6 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) ...@@ -784,8 +784,6 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false, rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false,
HW_DESC_RXBUFF_ADDR, HW_DESC_RXBUFF_ADDR,
(u8 *)&bufferaddress); (u8 *)&bufferaddress);
rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN,
(u8 *)&tmp_one);
rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
HW_DESC_RXPKT_LEN, HW_DESC_RXPKT_LEN,
(u8 *)&rtlpci->rxbuffersize); (u8 *)&rtlpci->rxbuffersize);
...@@ -795,6 +793,9 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) ...@@ -795,6 +793,9 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
HW_DESC_RXERO, HW_DESC_RXERO,
(u8 *)&tmp_one); (u8 *)&tmp_one);
rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN,
(u8 *)&tmp_one);
index = (index + 1) % rtlpci->rxringcount; index = (index + 1) % rtlpci->rxringcount;
} }
......
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