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>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 6c1b9dffc075..e29feef002bf 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -784,8 +784,6 @@ done:
                 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 @@ done:
                                                     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;
         }