Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Five small fixes.

  Some of these, like the nested spinlock overwriting saved flags and
  the Kasan use after free look serious, but they seem not to have been
  picked up in testing or seen in the field.

  The biggest user visible issue is probably the wrong device handler
  for Clariion, which means that alua doesn't bind to the array like it
  should"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ipr: Fix async error WARN_ON
  scsi: zfcp: spin_lock_irqsave() is not nestable
  scsi: Remove one useless stack variable
  scsi: Fix use-after-free
  scsi: Replace wrong device handler name for CLARiiON arrays

4 files changed, 6 insertions, 11 deletions

diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 637cf8973c9e1c..581001989937ce 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -384,7 +384,7 @@ void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf,
 	/* if (len > rec_len):
 	 * dump data up to cap_len ignoring small duplicate in rec->payload
 	 */
-	spin_lock_irqsave(&dbf->pay_lock, flags);
+	spin_lock(&dbf->pay_lock);
 	memset(payload, 0, sizeof(*payload));
 	memcpy(payload->area, paytag, ZFCP_DBF_TAG_LEN);
 	payload->fsf_req_id = req_id;
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index a8762a3efeef3f..532474109624d9 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -2586,7 +2586,6 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
 	struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
 	u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 	u32 fd_ioasc;
-	char *envp[] = { "ASYNC_ERR_LOG=1", NULL };
 
 	if (ioa_cfg->sis64)
 		fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
@@ -2607,8 +2606,8 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
 	}
 
 	list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q);
+	schedule_work(&ioa_cfg->work_q);
 	hostrcb = ipr_get_free_hostrcb(ioa_cfg);
-	kobject_uevent_env(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE, envp);
 
 	ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
 }
diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c
index 54d446c9f56e0e..b8d3b97b217ac5 100644
--- a/drivers/scsi/scsi_dh.c
+++ b/drivers/scsi/scsi_dh.c
@@ -36,9 +36,9 @@ struct scsi_dh_blist {
 };
 
 static const struct scsi_dh_blist scsi_dh_blist[] = {
-	{"DGC", "RAID",			"clariion" },
-	{"DGC", "DISK",			"clariion" },
-	{"DGC", "VRAID",		"clariion" },
+	{"DGC", "RAID",			"emc" },
+	{"DGC", "DISK",			"emc" },
+	{"DGC", "VRAID",		"emc" },
 
 	{"COMPAQ", "MSA1000 VOLUME",	"hp_sw" },
 	{"COMPAQ", "HSV110",		"hp_sw" },
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 212e98d940bc22..6f7128f49c30d6 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1307,7 +1307,6 @@ static void scsi_sequential_lun_scan(struct scsi_target *starget,
 static int scsi_report_lun_scan(struct scsi_target *starget, int bflags,
 				enum scsi_scan_mode rescan)
 {
-	char devname[64];
 	unsigned char scsi_cmd[MAX_COMMAND_SIZE];
 	unsigned int length;
 	u64 lun;
@@ -1349,9 +1348,6 @@ static int scsi_report_lun_scan(struct scsi_target *starget, int bflags,
 		}
 	}
 
-	sprintf(devname, "host %d channel %d id %d",
-		shost->host_no, sdev->channel, sdev->id);
-
 	/*
 	 * Allocate enough to hold the header (the same size as one scsi_lun)
 	 * plus the number of luns we are requesting.  511 was the default
@@ -1470,12 +1466,12 @@ retry:
  out_err:
 	kfree(lun_data);
  out:
-	scsi_device_put(sdev);
 	if (scsi_device_created(sdev))
 		/*
 		 * the sdev we used didn't appear in the report luns scan
 		 */
 		__scsi_remove_device(sdev);
+	scsi_device_put(sdev);
 	return ret;
 }