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path: root/drivers/s390/char/sclp_cmd.c
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Diffstat (limited to 'drivers/s390/char/sclp_cmd.c')
-rw-r--r--drivers/s390/char/sclp_cmd.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index be55fb2b1b1c..837e010299a8 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -383,8 +383,10 @@ static int sclp_attach_storage(u8 id)
switch (sccb->header.response_code) {
case 0x0020:
set_bit(id, sclp_storage_ids);
- for (i = 0; i < sccb->assigned; i++)
- sclp_unassign_storage(sccb->entries[i] >> 16);
+ for (i = 0; i < sccb->assigned; i++) {
+ if (sccb->entries[i])
+ sclp_unassign_storage(sccb->entries[i] >> 16);
+ }
break;
default:
rc = -EIO;