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path: root/drivers/s390/cio/css.c
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Diffstat (limited to 'drivers/s390/cio/css.c')
-rw-r--r--drivers/s390/cio/css.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index d3e504c3c362..dadff1838fec 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -1178,6 +1178,8 @@ device_initcall(cio_settle_init);
int sch_is_pseudo_sch(struct subchannel *sch)
{
+ if (!sch->dev.parent)
+ return 0;
return sch == to_css(sch->dev.parent)->pseudo_subchannel;
}