diff options
| author | Swen Schillig <swen@vnet.ibm.com> | 2008-11-26 18:07:37 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-12-01 10:17:14 -0600 |
| commit | 633528c304f20b5c2e3e04d48f620548ce08b12e (patch) | |
| tree | 07bf82b8ad982066cdd9525db7c4859de2859bac | |
| parent | 1c1cba17a9078c83a80a099bc207b208d664a13a (diff) | |
| download | blackbird-op-linux-633528c304f20b5c2e3e04d48f620548ce08b12e.tar.gz blackbird-op-linux-633528c304f20b5c2e3e04d48f620548ce08b12e.zip | |
[SCSI] zfcp: returning an ERR_PTR where a NULL value is expected
Aborting a SCSI cmnd might requrie to send a abort_fsf_cmnd. If the
creation of this fsf_req fails an ERR_PTR is returned where a NULL
value would be expected as an error indicator. This ERR_PTR is
dereferenced as valid fsf_req in succeeding processing leading to
an error.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 48bfd3049244..0343d881babd 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -930,8 +930,10 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, req_flags, adapter->pool.fsf_req_abort); - if (IS_ERR(req)) + if (IS_ERR(req)) { + req = NULL; goto out; + } if (unlikely(!(atomic_read(&unit->status) & ZFCP_STATUS_COMMON_UNBLOCKED))) @@ -2443,8 +2445,10 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter, goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, adapter->pool.fsf_req_scsi); - if (IS_ERR(req)) + if (IS_ERR(req)) { + req = NULL; goto out; + } req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; req->data = unit; |
