[PATCH] s390: enable interrupts on error path

Interrupts can stay disabled if an error occurred in _chp_add().  Use
spin_unlock_irq on the error paths to reenable interrupts.

Signed-off-by: Stefan Bader <shbader@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index daedb00a4346..72187e54dcac 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -635,13 +635,13 @@ __chp_add(struct subchannel_id schid, void *data)
                 if (sch->schib.pmcw.chpid[i] == chp->id) {
                         if (stsch(sch->schid, &sch->schib) != 0) {
                                 /* Endgame. */
-                                spin_unlock(&sch->lock);
+                                spin_unlock_irq(&sch->lock);
                                 return -ENXIO;
                         }
                         break;
                 }
         if (i==8) {
-                spin_unlock(&sch->lock);
+                spin_unlock_irq(&sch->lock);
                 return 0;
         }
         sch->lpm = ((sch->schib.pmcw.pim &