8139cp/8139too: do not read into reserved registers
delay_eeprom() use long read for Cfg9346 register(offset 0x50) which may read
into the area of reserved register(offset 0x53). Use byte read instead.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index 87cff10..886e6be 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -1589,7 +1589,7 @@
No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
*/
-#define eeprom_delay() readl(ee_addr)
+#define eeprom_delay() readb(ee_addr)
/* The EEPROM commands include the alway-set leading bit. */
#define EE_EXTEND_CMD (4)