[S390] cio: css_probe_device() must be called enabled.

Move css_probe_device() behind giving up the lock for the old subchannel
in css_evaluate_known_subchannel() so we aren't disabled when we call it.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index a2dee5bf5a1..ad7f7e1c016 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -271,10 +271,6 @@ static int css_evaluate_known_subchannel(struct subchannel *sch, int slow)
                 /* Reset intparm to zeroes. */
                 sch->schib.pmcw.intparm = 0;
                 cio_modify(sch);
-
-                /* Probe if necessary. */
-                if (action == UNREGISTER_PROBE)
-                        ret = css_probe_device(sch->schid);
                 break;
         case REPROBE:
                 device_trigger_reprobe(sch);
@@ -283,6 +279,9 @@ static int css_evaluate_known_subchannel(struct subchannel *sch, int slow)
                 break;
         }
         spin_unlock_irqrestore(&sch->lock, flags);
+        /* Probe if necessary. */
+        if (action == UNREGISTER_PROBE)
+                ret = css_probe_device(sch->schid);
 
         return ret;
 }