linux-kernel - [PATCH 4.9 135/164] staging: rtl8192e: rtl92e_get_eeprom_size Fix read size of EPROM

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Message-Id: <20170523200912.866767246@linuxfoundation.org>
Date:   Tue, 23 May 2017 22:09:12 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Malcolm Priestley <tvboxspy@...il.com>
Subject: [PATCH 4.9 135/164] staging: rtl8192e: rtl92e_get_eeprom_size Fix read size of EPROM_CMD.

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

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

From: Malcolm Priestley <tvboxspy@...il.com>

commit 90be652c9f157d44b9c2803f902a8839796c090d upstream.

EPROM_CMD is 2 byte aligned on PCI map so calling with rtl92e_readl
will return invalid data so use rtl92e_readw.

The device is unable to select the right eeprom type.

Signed-off-by: Malcolm Priestley <tvboxspy@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -627,7 +627,7 @@ void rtl92e_get_eeprom_size(struct net_d
 	struct r8192_priv *priv = rtllib_priv(dev);
 
 	RT_TRACE(COMP_INIT, "===========>%s()\n", __func__);
-	curCR = rtl92e_readl(dev, EPROM_CMD);
+	curCR = rtl92e_readw(dev, EPROM_CMD);
 	RT_TRACE(COMP_INIT, "read from Reg Cmd9346CR(%x):%x\n", EPROM_CMD,
 		 curCR);
 	priv->epromtype = (curCR & EPROM_CMD_9356SEL) ? EEPROM_93C56 :