4.13-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Larry Finger <larry.fin...@lwfinger.net>

commit b8b8b16352cd90c6083033fd4487f04fae935c18 upstream.

In commit 40b368af4b75 ("rtlwifi: Fix alignment issues"), the read
of REG_DBI_READ was changed from 16 to 8 bits. For unknown reasonsi
this change results in reduced stability for the wireless connection.
This regression was located using bisection.

Fixes: 40b368af4b75 ("rtlwifi: Fix alignment issues")
Reported-and-tested-by: James Cameron <qu...@laptop.org>
Signed-off-by: Larry Finger <larry.fin...@lwfinger.net>
Cc: Ping-Ke Shih <pks...@realtek.com>
Signed-off-by: Kalle Valo <kv...@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
@@ -1122,7 +1122,7 @@ static u8 _rtl8821ae_dbi_read(struct rtl
        }
        if (0 == tmp) {
                read_addr = REG_DBI_RDATA + addr % 4;
-               ret = rtl_read_byte(rtlpriv, read_addr);
+               ret = rtl_read_word(rtlpriv, read_addr);
        }
        return ret;
 }


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