lkml.org 
[lkml]   [2008]   [Jun]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] FS_ENET: Don't attempt to set mii_speed when fec_inf is null
From: Nye Liu <nyet@mrv.com>

When using CONFIG_FIXED_PHY, fec_inf (fep->phydev->bus->priv) is NULL in
fs_enet/mac-fec.c restart(). Dereferencing fec_inf when trying to set the
mii_speed causes a kernel oops.

Signed-off-by: Nye Liu <nyet@mrv.com>

---

diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c
index 8a311d1..350bc73 100644
--- a/drivers/net/fs_enet/mac-fec.c
+++ b/drivers/net/fs_enet/mac-fec.c
@@ -328,7 +328,8 @@ static void restart(struct net_device *dev)
/*
* Set MII speed.
*/
- FW(fecp, mii_speed, fec_inf->mii_speed);
+ if (fec_inf)
+ FW(fecp, mii_speed, fec_inf->mii_speed);

/*
* Clear any outstanding interrupt.


\
 
 \ /
  Last update: 2008-06-27 21:37    [W:0.055 / U:0.676 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site