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| author | James Bottomley <JBottomley@Parallels.com> | 2012-10-02 11:55:12 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-10-02 11:55:12 +0400 |
| commit | fe709ed827d370e6b0c0a9f9456da1c22bdcd118 (patch) | |
| tree | c5a7fd72a745a5f6656a58acc9a1d277e26f9595 /drivers/s390/scsi/zfcp_qdio.c | |
| parent | 1c4cf1d5845b59cdcbfad8e67272cf5b219ab062 (diff) | |
| parent | 0644f5393e915f13733bcc65f13195ff39aeb63e (diff) | |
| download | linux-fe709ed827d370e6b0c0a9f9456da1c22bdcd118.tar.xz | |
Merge SCSI misc branch into isci-for-3.6 tag
Diffstat (limited to 'drivers/s390/scsi/zfcp_qdio.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_qdio.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index b9fffc8d94a7..50b5615848f6 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -102,18 +102,22 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err, { struct zfcp_qdio *qdio = (struct zfcp_qdio *) parm; struct zfcp_adapter *adapter = qdio->adapter; - struct qdio_buffer_element *sbale; int sbal_no, sbal_idx; - void *pl[ZFCP_QDIO_MAX_SBALS_PER_REQ + 1]; - u64 req_id; - u8 scount; if (unlikely(qdio_err)) { - memset(pl, 0, ZFCP_QDIO_MAX_SBALS_PER_REQ * sizeof(void *)); if (zfcp_adapter_multi_buffer_active(adapter)) { + void *pl[ZFCP_QDIO_MAX_SBALS_PER_REQ + 1]; + struct qdio_buffer_element *sbale; + u64 req_id; + u8 scount; + + memset(pl, 0, + ZFCP_QDIO_MAX_SBALS_PER_REQ * sizeof(void *)); sbale = qdio->res_q[idx]->element; req_id = (u64) sbale->addr; - scount = sbale->scount + 1; /* incl. signaling SBAL */ + scount = min(sbale->scount + 1, + ZFCP_QDIO_MAX_SBALS_PER_REQ + 1); + /* incl. signaling SBAL */ for (sbal_no = 0; sbal_no < scount; sbal_no++) { sbal_idx = (idx + sbal_no) % |