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path: root/drivers/s390/cio/cio.c
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Diffstat (limited to 'drivers/s390/cio/cio.c')
-rw-r--r--drivers/s390/cio/cio.c25
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 7835a714a40..3a403f195cf 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -871,11 +871,32 @@ __clear_subchannel_easy(struct subchannel_id schid)
return -EBUSY;
}
+static int pgm_check_occured;
+
+static void cio_reset_pgm_check_handler(void)
+{
+ pgm_check_occured = 1;
+}
+
+static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr)
+{
+ int rc;
+
+ pgm_check_occured = 0;
+ s390_reset_pgm_handler = cio_reset_pgm_check_handler;
+ rc = stsch(schid, addr);
+ s390_reset_pgm_handler = NULL;
+ if (pgm_check_occured)
+ return -EIO;
+ else
+ return rc;
+}
+
static int __shutdown_subchannel_easy(struct subchannel_id schid, void *data)
{
struct schib schib;
- if (stsch_err(schid, &schib))
+ if (stsch_reset(schid, &schib))
return -ENXIO;
if (!schib.pmcw.ena)
return 0;
@@ -972,7 +993,7 @@ static int __reipl_subchannel_match(struct subchannel_id schid, void *data)
struct schib schib;
struct sch_match_id *match_id = data;
- if (stsch_err(schid, &schib))
+ if (stsch_reset(schid, &schib))
return -ENXIO;
if (schib.pmcw.dnv &&
(schib.pmcw.dev == match_id->devid.devno) &&