gianfar: Fix thinko in gfar_set_rx_stash_index()

We obviously want to write a modified 'temp' value back to the
register, not the saved IRQ flags.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/gianfar_sysfs.c b/drivers/net/gianfar_sysfs.c
index 3724835..b31c9c8 100644
--- a/drivers/net/gianfar_sysfs.c
+++ b/drivers/net/gianfar_sysfs.c
@@ -186,7 +186,7 @@
 	temp = gfar_read(&regs->attreli);
 	temp &= ~ATTRELI_EI_MASK;
 	temp |= ATTRELI_EI(index);
-	gfar_write(&regs->attreli, flags);
+	gfar_write(&regs->attreli, temp);
 
 out:
 	unlock_rx_qs(priv);