diff options
| -rw-r--r-- | drivers/s390/char/sclp_early.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c index 82f2c389b4d1..2c6aac66e2b0 100644 --- a/drivers/s390/char/sclp_early.c +++ b/drivers/s390/char/sclp_early.c @@ -184,9 +184,9 @@ static long __init sclp_hsa_size_init(struct sdias_sccb *sccb) sccb_init_eq_size(sccb); if (sclp_cmd_early(SCLP_CMDW_WRITE_EVENT_DATA, sccb)) return -EIO; - if (sccb->evbuf.blk_cnt != 0) - return (sccb->evbuf.blk_cnt - 1) * PAGE_SIZE; - return 0; + if (sccb->evbuf.blk_cnt == 0) + return 0; + return (sccb->evbuf.blk_cnt - 1) * PAGE_SIZE; } static long __init sclp_hsa_copy_wait(struct sccb_header *sccb) @@ -195,6 +195,8 @@ static long __init sclp_hsa_copy_wait(struct sccb_header *sccb) sccb->length = PAGE_SIZE; if (sclp_cmd_early(SCLP_CMDW_READ_EVENT_DATA, sccb)) return -EIO; + if (((struct sdias_sccb *) sccb)->evbuf.blk_cnt == 0) + return 0; return (((struct sdias_sccb *) sccb)->evbuf.blk_cnt - 1) * PAGE_SIZE; } |