1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
From 63534a79e2fb1e4102fe38f339ecb891682a781e Mon Sep 17 00:00:00 2001
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Date: Fri, 23 Sep 2016 18:26:53 +0300
Subject: [PATCH] net: ravb: fix unsafe phy access
This fixes the ravb driver crash for phy/phyless glue
that do not have writeext field
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
---
drivers/net/ravb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ravb.c b/drivers/net/ravb.c
index f4d7aed..5d90a3e 100644
--- a/drivers/net/ravb.c
+++ b/drivers/net/ravb.c
@@ -475,7 +475,8 @@ static int ravb_config(struct ravb_dev *eth, bd_t *bd)
ravb_write(eth, ECMR_CHG_DM | ECMR_RE | ECMR_TE, ECMR);
}
- phy->drv->writeext(phy, -1, 0x02, 0x08, (0x0f<<5) | 0x19);
+ if (phy->drv->writeext)
+ phy->drv->writeext(phy, -1, 0x02, 0x08, (0x0f<<5) | 0x19);
err_phy_cfg:
return ret;
--
1.9.1
|
