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-rw-r--r--drivers/s390/cio/chsc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 39bb2ea7b78f..4fe9531fb128 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -907,7 +907,8 @@ int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
struct chsc_scpd *scpd_area;
int ccode, ret;
- if ((rfmt == 1) && !css_general_characteristics.fcs)
+ if ((rfmt == 1 || rfmt == 0) && c == 1 &&
+ !css_general_characteristics.fcs)
return -EINVAL;
if ((rfmt == 2) && !css_general_characteristics.cib)
return -EINVAL;
@@ -966,7 +967,7 @@ int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
spin_lock_irqsave(&chsc_page_lock, flags);
scpd_area = chsc_page;
- ret = chsc_determine_channel_path_desc(chpid, 0, 0, 1, 0, scpd_area);
+ ret = chsc_determine_channel_path_desc(chpid, 0, 1, 1, 0, scpd_area);
if (ret)
goto out;
chsc_resp = (void *)&scpd_area->response;
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