src/patches/suse-2.6.27.39/patches.arch/s390-12-07-ctcm_remove_crash.patch

   1 From: Gerald Schaefer <geraldsc@de.ibm.com>
   2 Subject: ctcm: avoid crash in ctcm_remove_device
   3 References: bnc#487755,LTC#52679
   4
   5 Symptom:     crash in debugging call of ctcm_remove_device
   6 Problem:     Channels are already removed when setting a
   7              ctcm-device offline. Thus ctcm_remove_device must
   8              not refer to channel information.
   9 Solution:    delete channel information from the trace call in
  10              ctcm_remove_device.
  11
  12 Acked-by: John Jolly <jjolly@suse.de>
  13 ---
  14  drivers/s390/net/ctcm_main.c |    6 ++----
  15  1 file changed, 2 insertions(+), 4 deletions(-)
  16
  17 Index: linux-sles11/drivers/s390/net/ctcm_main.c
  18 ===================================================================
  19 --- linux-sles11.orig/drivers/s390/net/ctcm_main.c
  20 +++ linux-sles11/drivers/s390/net/ctcm_main.c
  21 @@ -1665,10 +1665,8 @@ static void ctcm_remove_device(struct cc
  22         BUG_ON(priv == NULL);
  23
  24         CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO,
  25 -                       "removing device %s, r/w = %s/%s, proto : %d",
  26 -                       priv->channel[READ]->netdev->name,
  27 -                       priv->channel[READ]->id, priv->channel[WRITE]->id,
  28 -                       priv->protocol);
  29 +                       "removing device %p, proto : %d",
  30 +                       cgdev, priv->protocol);
  31
  32         if (cgdev->state == CCWGROUP_ONLINE)
  33                 ctcm_shutdown_device(cgdev);