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s390/cio: fix unlocked access of global bitmap
[linux-2.6-microblaze.git]
/
drivers
/
s390
/
cio
/
css.c
diff --git
a/drivers/s390/cio/css.c
b/drivers/s390/cio/css.c
index
4eb2a54
..
8c2cb87
100644
(file)
--- a/
drivers/s390/cio/css.c
+++ b/
drivers/s390/cio/css.c
@@
-546,7
+546,9
@@
static int slow_eval_unknown_fn(struct subchannel_id schid, void *data)
case -ENOMEM:
case -EIO:
/* These should abort looping */
+ spin_lock_irq(&slow_subchannel_lock);
idset_sch_del_subseq(slow_subchannel_set, schid);
+ spin_unlock_irq(&slow_subchannel_lock);
break;
default:
rc = 0;