[S390] extmem unbalanced spin_lock.
segment save will exit with a lock held if the passed segment doesn't
exist. Any subsequent call to segment_save will lead to a deadlock.
Fix this and give up the lock before returning.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 226275d..077af54 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -563,8 +563,9 @@
seg = segment_by_name (name);
if (seg == NULL) {
- PRINT_ERR ("could not find segment %s in segment_save, please report to linux390@de.ibm.com\n",name);
- return;
+ PRINT_ERR("could not find segment %s in segment_save, please "
+ "report to linux390@de.ibm.com\n", name);
+ goto out;
}
startpfn = seg->start_addr >> PAGE_SHIFT;