src/patches/suse-2.6.27.39/patches.arch/s390-04-01-qdio_prevent_double_shutdown.patch

   1 From: Gerald Schaefer <geraldsc@de.ibm.com>
   2 Subject: qdio: prevent double qdio shutdown in case of I/O errors.
   3 References: bnc#445100
   4
   5 Symptom:     I/O errors reported using a zfcp disk.
   6 Problem:     In case of I/O errors on a qdio subchannel qdio_shutdown may be
   7              called twice by the qdio driver and by zfcp.
   8 Solution:    Remove the superfluous shutdown from qdio and let the upper layer driver
   9              handle the error condition.
  10
  11 Acked-by: John Jolly <jjolly@suse.de>
  12
  13 ---
  14  drivers/s390/cio/qdio_main.c |    1 -
  15  1 file changed, 1 deletion(-)
  16
  17 Index: linux-sles11/drivers/s390/cio/qdio_main.c
  18 ===================================================================
  19 --- linux-sles11.orig/drivers/s390/cio/qdio_main.c
  20 +++ linux-sles11/drivers/s390/cio/qdio_main.c
  21 @@ -1080,7 +1080,6 @@ void qdio_int_handler(struct ccw_device
  22                 case -EIO:
  23                         sprintf(dbf_text, "ierr%4x", irq_ptr->schid.sch_no);
  24                         QDIO_DBF_TEXT2(1, setup, dbf_text);
  25 -                       qdio_int_error(cdev);
  26                         return;
  27                 case -ETIMEDOUT:
  28                         sprintf(dbf_text, "qtoh%4x", irq_ptr->schid.sch_no);