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

Pull SCSI fixes from James Bottomley:
 "One core fix for an oops which can occur if the error handling thread
  fails to start for some reason and the driver is removed.

  The other fixes are all minor ones in drivers"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: core: Add missing host_lock in ufshcd_vops_setup_xfer_req()
  scsi: mpi3mr: Fix W=1 compilation warnings
  scsi: pm8001: Clean up kernel-doc and comments
  scsi: zfcp: Report port fc_security as unknown early during remote cable pull
  scsi: core: Fix bad pointer dereference when ehandler kthread is invalid
  scsi: fas216: Fix a build error
  scsi: core: Fix the documentation of the scsi_execute() time parameter

11 files changed, 115 insertions, 101 deletions

diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 544efd4c42f0..b8cd75a872ee 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -487,6 +487,7 @@ static ssize_t zfcp_sysfs_port_fc_security_show(struct device *dev,
 	if (0 == (status & ZFCP_STATUS_COMMON_OPEN) ||
 	    0 == (status & ZFCP_STATUS_COMMON_UNBLOCKED) ||
 	    0 == (status & ZFCP_STATUS_PORT_PHYS_OPEN) ||
+	    0 != (status & ZFCP_STATUS_PORT_LINK_TEST) ||
 	    0 != (status & ZFCP_STATUS_COMMON_ERP_FAILED) ||
 	    0 != (status & ZFCP_STATUS_COMMON_ACCESS_BOXED))
 		i = sprintf(buf, "unknown\n");
diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index 30ed3d23635a..6baa9b36367d 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -2010,7 +2010,7 @@ static void fas216_rq_sns_done(FAS216_Info *info, struct scsi_cmnd *SCpnt,
 		   "request sense complete, result=0x%04x%02x%02x",
 		   result, SCpnt->SCp.Message, SCpnt->SCp.Status);
 
-	if (result != DID_OK || SCpnt->SCp.Status != GOOD)
+	if (result != DID_OK || SCpnt->SCp.Status != SAM_STAT_GOOD)
 		/*
 		 * Something went wrong.  Make sure that we don't
 		 * have valid data in the sense buffer that could
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 929a3b043ad7..3f6f14f0cafb 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -488,6 +488,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 		shost_printk(KERN_WARNING, shost,
 			"error handler thread failed to spawn, error = %ld\n",
 			PTR_ERR(shost->ehandler));
+		shost->ehandler = NULL;
 		goto fail;
 	}
 
diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index 9eceafca59bc..2dba2b0af166 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -2607,14 +2607,13 @@ static int mpi3mr_issue_iocinit(struct mpi3mr_ioc *mrioc)
 		goto out;
 	}
 	drv_info->information_length = cpu_to_le32(data_len);
-	strncpy(drv_info->driver_signature, "Broadcom", sizeof(drv_info->driver_signature));
-	strncpy(drv_info->os_name, utsname()->sysname, sizeof(drv_info->os_name));
-	drv_info->os_name[sizeof(drv_info->os_name) - 1] = 0;
-	strncpy(drv_info->os_version, utsname()->release, sizeof(drv_info->os_version));
-	drv_info->os_version[sizeof(drv_info->os_version) - 1] = 0;
-	strncpy(drv_info->driver_name, MPI3MR_DRIVER_NAME, sizeof(drv_info->driver_name));
-	strncpy(drv_info->driver_version, MPI3MR_DRIVER_VERSION, sizeof(drv_info->driver_version));
-	strncpy(drv_info->driver_release_date, MPI3MR_DRIVER_RELDATE, sizeof(drv_info->driver_release_date));
+	strscpy(drv_info->driver_signature, "Broadcom", sizeof(drv_info->driver_signature));
+	strscpy(drv_info->os_name, utsname()->sysname, sizeof(drv_info->os_name));
+	strscpy(drv_info->os_version, utsname()->release, sizeof(drv_info->os_version));
+	strscpy(drv_info->driver_name, MPI3MR_DRIVER_NAME, sizeof(drv_info->driver_name));
+	strscpy(drv_info->driver_version, MPI3MR_DRIVER_VERSION, sizeof(drv_info->driver_version));
+	strscpy(drv_info->driver_release_date, MPI3MR_DRIVER_RELDATE,
+	    sizeof(drv_info->driver_release_date));
 	drv_info->driver_capabilities = 0;
 	memcpy((u8 *)&mrioc->driver_info, (u8 *)drv_info,
 	    sizeof(mrioc->driver_info));
diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c
index 0b8802beb7ce..ec05c42e8ee6 100644
--- a/drivers/scsi/pm8001/pm8001_ctl.c
+++ b/drivers/scsi/pm8001/pm8001_ctl.c
@@ -77,7 +77,7 @@ DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL);
  * @attr: device attribute (unused)
  * @buf: the buffer returned
  *
- * A sysfs 'read only' shost attribute.
+ * A sysfs 'read-only' shost attribute.
  */
 static ssize_t controller_fatal_error_show(struct device *cdev,
 		struct device_attribute *attr, char *buf)
@@ -149,7 +149,7 @@ static ssize_t pm8001_ctl_ila_version_show(struct device *cdev,
 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL);
 
 /**
- * pm8001_ctl_inactive_fw_version_show - Inacative firmware version number
+ * pm8001_ctl_inactive_fw_version_show - Inactive firmware version number
  * @cdev: pointer to embedded class device
  * @attr: device attribute (unused)
  * @buf: the buffer returned
@@ -396,6 +396,7 @@ static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
  * @cdev:pointer to embedded class device
  * @attr: device attribute (unused)
  * @buf: the buffer returned
+ *
  * A sysfs 'read-only' shost attribute.
  */
 static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
@@ -430,6 +431,7 @@ static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
  * @cdev:pointer to embedded class device
  * @attr: device attribute (unused)
  * @buf: the buffer returned
+ *
  * A sysfs 'read-only' shost attribute.
  */
 
@@ -464,6 +466,7 @@ static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
  * @cdev:pointer to embedded class device
  * @attr: device attribute (unused)
  * @buf:the buffer returned
+ *
  * A sysfs 'read-only' shost attribute.
  */
 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
@@ -555,13 +558,13 @@ static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
 
 /**
- ** pm8001_ctl_fatal_log_show - fatal error logging
- ** @cdev:pointer to embedded class device
- ** @attr: device attribute
- ** @buf: the buffer returned
- **
- ** A sysfs 'read-only' shost attribute.
- **/
+ * pm8001_ctl_fatal_log_show - fatal error logging
+ * @cdev:pointer to embedded class device
+ * @attr: device attribute
+ * @buf: the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
 
 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
 	struct device_attribute *attr, char *buf)
@@ -575,13 +578,13 @@ static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
 
 /**
- ** non_fatal_log_show - non fatal error logging
- ** @cdev:pointer to embedded class device
- ** @attr: device attribute
- ** @buf: the buffer returned
- **
- ** A sysfs 'read-only' shost attribute.
- **/
+ * non_fatal_log_show - non fatal error logging
+ * @cdev:pointer to embedded class device
+ * @attr: device attribute
+ * @buf: the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
 static ssize_t non_fatal_log_show(struct device *cdev,
 	struct device_attribute *attr, char *buf)
 {
@@ -620,12 +623,13 @@ static ssize_t non_fatal_count_store(struct device *cdev,
 static DEVICE_ATTR_RW(non_fatal_count);
 
 /**
- ** pm8001_ctl_gsm_log_show - gsm dump collection
- ** @cdev:pointer to embedded class device
- ** @attr: device attribute (unused)
- ** @buf: the buffer returned
- ** A sysfs 'read-only' shost attribute.
- **/
+ * pm8001_ctl_gsm_log_show - gsm dump collection
+ * @cdev:pointer to embedded class device
+ * @attr: device attribute (unused)
+ * @buf: the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
 	struct device_attribute *attr, char *buf)
 {
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 33f8217577b1..17c0f26e683a 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -384,7 +384,7 @@ static void update_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
 
 /**
  * pm8001_bar4_shift - function is called to shift BAR base address
- * @pm8001_ha : our hba card infomation
+ * @pm8001_ha : our hba card information
  * @shiftValue : shifting value in memory bar.
  */
 int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue)
@@ -1151,7 +1151,7 @@ static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha)
 }
 
 /**
- * pm8001_chip_iounmap - which maped when initialized.
+ * pm8001_chip_iounmap - which mapped when initialized.
  * @pm8001_ha: our hba card information
  */
 void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha)
@@ -1187,10 +1187,10 @@ pm8001_chip_intx_interrupt_enable(struct pm8001_hba_info *pm8001_ha)
 	pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
 }
 
- /**
-  * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
-  * @pm8001_ha: our hba card information
-  */
+/**
+ * pm8001_chip_intx_interrupt_disable - disable PM8001 chip interrupt
+ * @pm8001_ha: our hba card information
+ */
 static void
 pm8001_chip_intx_interrupt_disable(struct pm8001_hba_info *pm8001_ha)
 {
@@ -1876,8 +1876,8 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
  * @piomb: the message contents of this outbound message.
  *
  * When FW has completed a ssp request for example a IO request, after it has
- * filled the SG data with the data, it will trigger this event represent
- * that he has finished the job,please check the coresponding buffer.
+ * filled the SG data with the data, it will trigger this event representing
+ * that he has finished the job; please check the corresponding buffer.
  * So we will tell the caller who maybe waiting the result to tell upper layer
  * that the task has been finished.
  */
@@ -3522,7 +3522,7 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
  *
  * when sas layer find a device it will notify LLDD, then the driver register
  * the domain device to FW, this event is the return device ID which the FW
- * has assigned, from now,inter-communication with FW is no longer using the
+ * has assigned, from now, inter-communication with FW is no longer using the
  * SAS address, use device ID which FW assigned.
  */
 int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 313248c7bab9..47db7e0beae6 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -233,7 +233,7 @@ static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque)
 /**
  * pm8001_interrupt_handler_intx - main INTx interrupt handler.
  * @irq: interrupt number
- * @dev_id: sas_ha structure. The HBA is retrieved from sas_has structure.
+ * @dev_id: sas_ha structure. The HBA is retrieved from sas_ha structure.
  */
 
 static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id)
@@ -439,9 +439,9 @@ err_out:
 }
 
 /**
- * pm8001_ioremap - remap the pci high physical address to kernal virtual
+ * pm8001_ioremap - remap the pci high physical address to kernel virtual
  * address so that we can access them.
- * @pm8001_ha:our hba structure.
+ * @pm8001_ha: our hba structure.
  */
 static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha)
 {
@@ -652,7 +652,7 @@ static void  pm8001_post_sas_ha_init(struct Scsi_Host *shost,
  * pm8001_init_sas_add - initialize sas address
  * @pm8001_ha: our ha struct.
  *
- * Currently we just set the fixed SAS address to our HBA,for manufacture,
+ * Currently we just set the fixed SAS address to our HBA, for manufacture,
  * it should read from the EEPROM
  */
 static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
@@ -790,7 +790,7 @@ struct pm8001_mpi3_phy_pg_trx_config {
 };
 
 /**
- * pm8001_get_internal_phy_settings : Retrieves the internal PHY settings
+ * pm8001_get_internal_phy_settings - Retrieves the internal PHY settings
  * @pm8001_ha : our adapter
  * @phycfg : PHY config page to populate
  */
@@ -810,7 +810,7 @@ void pm8001_get_internal_phy_settings(struct pm8001_hba_info *pm8001_ha,
 }
 
 /**
- * pm8001_get_external_phy_settings : Retrieves the external PHY settings
+ * pm8001_get_external_phy_settings - Retrieves the external PHY settings
  * @pm8001_ha : our adapter
  * @phycfg : PHY config page to populate
  */
@@ -830,7 +830,7 @@ void pm8001_get_external_phy_settings(struct pm8001_hba_info *pm8001_ha,
 }
 
 /**
- * pm8001_get_phy_mask : Retrieves the mask that denotes if a PHY is int/ext
+ * pm8001_get_phy_mask - Retrieves the mask that denotes if a PHY is int/ext
  * @pm8001_ha : our adapter
  * @phymask : The PHY mask
  */
@@ -868,7 +868,7 @@ void pm8001_get_phy_mask(struct pm8001_hba_info *pm8001_ha, int *phymask)
 }
 
 /**
- * pm8001_set_phy_settings_ven_117c_12G() : Configure ATTO 12Gb PHY settings
+ * pm8001_set_phy_settings_ven_117c_12G() - Configure ATTO 12Gb PHY settings
  * @pm8001_ha : our adapter
  */
 static
@@ -903,7 +903,7 @@ int pm8001_set_phy_settings_ven_117c_12G(struct pm8001_hba_info *pm8001_ha)
 }
 
 /**
- * pm8001_configure_phy_settings : Configures PHY settings based on vendor ID.
+ * pm8001_configure_phy_settings - Configures PHY settings based on vendor ID.
  * @pm8001_ha : our hba.
  */
 static int pm8001_configure_phy_settings(struct pm8001_hba_info *pm8001_ha)
@@ -1053,8 +1053,8 @@ intx:
  * @ent: pci device id
  *
  * This function is the main initialization function, when register a new
- * pci driver it is invoked, all struct an hardware initilization should be done
- * here, also, register interrupt
+ * pci driver it is invoked, all struct and hardware initialization should be
+ * done here, also, register interrupt.
  */
 static int pm8001_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
@@ -1172,10 +1172,11 @@ err_out_enable:
 	return rc;
 }
 
-/*
+/**
  * pm8001_init_ccb_tag - allocate memory to CCB and tag.
  * @pm8001_ha: our hba card information.
  * @shost: scsi host which has been allocated outside.
+ * @pdev: pci device.
  */
 static int
 pm8001_init_ccb_tag(struct pm8001_hba_info *pm8001_ha, struct Scsi_Host *shost,
@@ -1270,7 +1271,7 @@ static void pm8001_pci_remove(struct pci_dev *pdev)
  * pm8001_pci_suspend - power management suspend main entry point
  * @dev: Device struct
  *
- * Returns 0 success, anything else error.
+ * Return: 0 on success, anything else on error.
  */
 static int __maybe_unused pm8001_pci_suspend(struct device *dev)
 {
@@ -1315,7 +1316,7 @@ static int __maybe_unused pm8001_pci_suspend(struct device *dev)
  * pm8001_pci_resume - power management resume main entry point
  * @dev: Device struct
  *
- * Returns 0 success, anything else error.
+ * Return: 0 on success, anything else on error.
  */
 static int __maybe_unused pm8001_pci_resume(struct device *dev)
 {
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 6f33d821e545..48548a95327b 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -98,14 +98,16 @@ void pm8001_tag_init(struct pm8001_hba_info *pm8001_ha)
 		pm8001_tag_free(pm8001_ha, i);
 }
 
- /**
-  * pm8001_mem_alloc - allocate memory for pm8001.
-  * @pdev: pci device.
-  * @virt_addr: the allocated virtual address
-  * @pphys_addr_hi: the physical address high byte address.
-  * @pphys_addr_lo: the physical address low byte address.
-  * @mem_size: memory size.
-  */
+/**
+ * pm8001_mem_alloc - allocate memory for pm8001.
+ * @pdev: pci device.
+ * @virt_addr: the allocated virtual address
+ * @pphys_addr: DMA address for this device
+ * @pphys_addr_hi: the physical address high byte address.
+ * @pphys_addr_lo: the physical address low byte address.
+ * @mem_size: memory size.
+ * @align: requested byte alignment
+ */
 int pm8001_mem_alloc(struct pci_dev *pdev, void **virt_addr,
 	dma_addr_t *pphys_addr, u32 *pphys_addr_hi,
 	u32 *pphys_addr_lo, u32 mem_size, u32 align)
@@ -339,7 +341,7 @@ static int pm8001_task_prep_ssp_tm(struct pm8001_hba_info *pm8001_ha,
 }
 
 /**
-  * pm8001_task_prep_ssp - the dispatcher function,prepare ssp data for ssp task
+  * pm8001_task_prep_ssp - the dispatcher function, prepare ssp data for ssp task
   * @pm8001_ha: our hba card information
   * @ccb: the ccb which attached to ssp task
   */
@@ -554,10 +556,10 @@ void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
 	pm8001_tag_free(pm8001_ha, ccb_idx);
 }
 
- /**
-  * pm8001_alloc_dev - find a empty pm8001_device
-  * @pm8001_ha: our hba card information
-  */
+/**
+ * pm8001_alloc_dev - find a empty pm8001_device
+ * @pm8001_ha: our hba card information
+ */
 static struct pm8001_device *pm8001_alloc_dev(struct pm8001_hba_info *pm8001_ha)
 {
 	u32 dev;
@@ -705,7 +707,7 @@ static void pm8001_tmf_timedout(struct timer_list *t)
   * @parameter: ssp task parameter.
   *
   * when errors or exception happened, we may want to do something, for example
-  * abort the issued task which result in this execption, it is done by calling
+  * abort the issued task which result in this exception, it is done by calling
   * this function, note it is also with the task execute interface.
   */
 static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
@@ -984,11 +986,12 @@ void pm8001_open_reject_retry(
 }
 
 /**
- * pm8001_I_T_nexus_reset()
-  * Standard mandates link reset for ATA  (type 0) and hard reset for
-  * SSP (type 1) , only for RECOVERY
-  * @dev: the device structure for the device to reset.
-  */
+ * pm8001_I_T_nexus_reset() - reset the initiator/target connection
+ * @dev: the device structure for the device to reset.
+ *
+ * Standard mandates link reset for ATA (type 0) and hard reset for
+ * SSP (type 1), only for RECOVERY
+ */
 int pm8001_I_T_nexus_reset(struct domain_device *dev)
 {
 	int rc = TMF_RESP_FUNC_FAILED;
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 45ecd9639977..6ffe17b849ae 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -140,7 +140,7 @@ ssize_t pm80xx_get_fatal_dump(struct device *cdev,
 		pm8001_ha->fatal_bar_loc = 0;
 	}
 
-	/* Read until accum_len is retrived */
+	/* Read until accum_len is retrieved */
 	accum_len = pm8001_mr32(fatal_table_address,
 				MPI_FATAL_EDUMP_TABLE_ACCUM_LEN);
 	/* Determine length of data between previously stored transfer length
@@ -1011,7 +1011,7 @@ static int mpi_init_check(struct pm8001_hba_info *pm8001_ha)
 			   value);
 		return -EBUSY;
 	}
-	/* check the MPI-State for initialization upto 100ms*/
+	/* check the MPI-State for initialization up to 100ms*/
 	max_wait_count = 5;/* 100 msec */
 	do {
 		msleep(FW_READY_INTERVAL);
@@ -1093,7 +1093,7 @@ static int init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
 
 	value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
 
-	/**
+	/*
 	 * lower 26 bits of SCRATCHPAD0 register describes offset within the
 	 * PCIe BAR where the MPI configuration table is present
 	 */
@@ -1101,7 +1101,7 @@ static int init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
 
 	pm8001_dbg(pm8001_ha, DEV, "Scratchpad 0 Offset: 0x%x value 0x%x\n",
 		   offset, value);
-	/**
+	/*
 	 * Upper 6 bits describe the offset within PCI config space where BAR
 	 * is located.
 	 */
@@ -1109,7 +1109,7 @@ static int init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
 	pcibar = get_pci_bar_index(pcilogic);
 	pm8001_dbg(pm8001_ha, INIT, "Scratchpad 0 PCI BAR: %d\n", pcibar);
 
-	/**
+	/*
 	 * Make sure the offset falls inside the ioremapped PCI BAR
 	 */
 	if (offset > pm8001_ha->io_mem[pcibar].memsize) {
@@ -1121,7 +1121,7 @@ static int init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
 	pm8001_ha->main_cfg_tbl_addr = base_addr =
 		pm8001_ha->io_mem[pcibar].memvirtaddr + offset;
 
-	/**
+	/*
 	 * Validate main configuration table address: first DWord should read
 	 * "PMCS"
 	 */
@@ -1385,7 +1385,7 @@ pm80xx_get_encrypt_info(struct pm8001_hba_info *pm8001_ha)
 }
 
 /**
- * pm80xx_encrypt_update - update flash with encryption informtion
+ * pm80xx_encrypt_update - update flash with encryption information
  * @pm8001_ha: our hba card information.
  */
 static int pm80xx_encrypt_update(struct pm8001_hba_info *pm8001_ha)
@@ -1422,7 +1422,7 @@ static int pm80xx_encrypt_update(struct pm8001_hba_info *pm8001_ha)
 }
 
 /**
- * pm80xx_chip_init - the main init function that initialize whole PM8001 chip.
+ * pm80xx_chip_init - the main init function that initializes whole PM8001 chip.
  * @pm8001_ha: our hba card information
  */
 static int pm80xx_chip_init(struct pm8001_hba_info *pm8001_ha)
@@ -1541,7 +1541,7 @@ static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha)
 }
 
 /**
- * pm80xx_fatal_errors - returns non zero *ONLY* when fatal errors
+ * pm80xx_fatal_errors - returns non-zero *ONLY* when fatal errors
  * @pm8001_ha: our hba card information
  *
  * Fatal errors are recoverable only after a host reboot.
@@ -1576,8 +1576,8 @@ pm80xx_fatal_errors(struct pm8001_hba_info *pm8001_ha)
 }
 
 /**
- * pm80xx_chip_soft_rst - soft reset the PM8001 chip, so that the clear all
- * the FW register status to the originated status.
+ * pm80xx_chip_soft_rst - soft reset the PM8001 chip, so that all
+ * FW register status are reset to the originated status.
  * @pm8001_ha: our hba card information
  */
 
@@ -1895,13 +1895,13 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha,
 }
 
 /**
- * mpi_ssp_completion- process the event that FW response to the SSP request.
+ * mpi_ssp_completion - process the event that FW response to the SSP request.
  * @pm8001_ha: our hba card information
  * @piomb: the message contents of this outbound message.
  *
  * When FW has completed a ssp request for example a IO request, after it has
- * filled the SG data with the data, it will trigger this event represent
- * that he has finished the job,please check the coresponding buffer.
+ * filled the SG data with the data, it will trigger this event representing
+ * that he has finished the job; please check the corresponding buffer.
  * So we will tell the caller who maybe waiting the result to tell upper layer
  * that the task has been finished.
  */
@@ -3217,7 +3217,7 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
 }
 
 /**
- * pm80xx_hw_event_ack_req- For PM8001,some events need to acknowage to FW.
+ * pm80xx_hw_event_ack_req- For PM8001, some events need to acknowledge to FW.
  * @pm8001_ha: our hba card information
  * @Qnum: the outbound queue message number.
  * @SEA: source of event to ack
@@ -3275,7 +3275,7 @@ static void hw_event_port_recover(struct pm8001_hba_info *pm8001_ha,
 }
 
 /**
- * hw_event_sas_phy_up -FW tells me a SAS phy up event.
+ * hw_event_sas_phy_up - FW tells me a SAS phy up event.
  * @pm8001_ha: our hba card information
  * @piomb: IO message buffer
  */
@@ -3353,7 +3353,7 @@ hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
 }
 
 /**
- * hw_event_sata_phy_up -FW tells me a SATA phy up event.
+ * hw_event_sata_phy_up - FW tells me a SATA phy up event.
  * @pm8001_ha: our hba card information
  * @piomb: IO message buffer
  */
@@ -3400,7 +3400,7 @@ hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
 }
 
 /**
- * hw_event_phy_down -we should notify the libsas the phy is down.
+ * hw_event_phy_down - we should notify the libsas the phy is down.
  * @pm8001_ha: our hba card information
  * @piomb: IO message buffer
  */
@@ -3500,7 +3500,7 @@ static int mpi_phy_start_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 }
 
 /**
- * mpi_thermal_hw_event -The hw event has come.
+ * mpi_thermal_hw_event - a thermal hw event has come.
  * @pm8001_ha: our hba card information
  * @piomb: IO message buffer
  */
@@ -3530,7 +3530,7 @@ static int mpi_thermal_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
 }
 
 /**
- * mpi_hw_event -The hw event has come.
+ * mpi_hw_event - The hw event has come.
  * @pm8001_ha: our hba card information
  * @piomb: IO message buffer
  */
@@ -4025,7 +4025,7 @@ static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	case OPC_OUB_SET_DEV_INFO:
 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEV_INFO\n");
 		break;
-	/* spcv specifc commands */
+	/* spcv specific commands */
 	case OPC_OUB_PHY_START_RESP:
 		pm8001_dbg(pm8001_ha, MSG,
 			   "OPC_OUB_PHY_START_RESP opcode:%x\n", opc);
@@ -4186,7 +4186,7 @@ static void build_smp_cmd(u32 deviceID, __le32 hTag,
 }
 
 /**
- * pm80xx_chip_smp_req - send a SMP task to FW
+ * pm80xx_chip_smp_req - send an SMP task to FW
  * @pm8001_ha: our hba card information.
  * @ccb: the ccb information this request used.
  */
@@ -4346,7 +4346,7 @@ static int check_enc_sat_cmd(struct sas_task *task)
 }
 
 /**
- * pm80xx_chip_ssp_io_req - send a SSP task to FW
+ * pm80xx_chip_ssp_io_req - send an SSP task to FW
  * @pm8001_ha: our hba card information.
  * @ccb: the ccb information this request used.
  */
@@ -4750,13 +4750,13 @@ pm80xx_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
 	payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
 			LINKMODE_AUTO | pm8001_ha->link_rate | phy_id);
 	/* SSC Disable and SAS Analog ST configuration */
-	/**
+	/*
 	payload.ase_sh_lm_slr_phyid =
 		cpu_to_le32(SSC_DISABLE_30 | SAS_ASE | SPINHOLD_DISABLE |
 		LINKMODE_AUTO | LINKRATE_15 | LINKRATE_30 | LINKRATE_60 |
 		phy_id);
 	Have to add "SAS PHY Analog Setup SPASTI 1 Byte" Based on need
-	**/
+	*/
 
 	payload.sas_identify.dev_type = SAS_END_DEVICE;
 	payload.sas_identify.initiator_bits = SAS_PROTOCOL_ALL;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 8f9727e525aa..7456a26aef51 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -194,7 +194,7 @@ void scsi_queue_insert(struct scsi_cmnd *cmd, int reason)
  * @bufflen:	len of buffer
  * @sense:	optional sense buffer
  * @sshdr:	optional decoded sense header
- * @timeout:	request timeout in seconds
+ * @timeout:	request timeout in HZ
  * @retries:	number of times to retry request
  * @flags:	flags for ->cmd_flags
  * @rq_flags:	flags for ->rq_flags
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index c98d540ac044..194755c9ddfe 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1229,8 +1229,13 @@ static inline int ufshcd_vops_pwr_change_notify(struct ufs_hba *hba,
 static inline void ufshcd_vops_setup_xfer_req(struct ufs_hba *hba, int tag,
 					bool is_scsi_cmd)
 {
-	if (hba->vops && hba->vops->setup_xfer_req)
-		return hba->vops->setup_xfer_req(hba, tag, is_scsi_cmd);
+	if (hba->vops && hba->vops->setup_xfer_req) {
+		unsigned long flags;
+
+		spin_lock_irqsave(hba->host->host_lock, flags);
+		hba->vops->setup_xfer_req(hba, tag, is_scsi_cmd);
+		spin_unlock_irqrestore(hba->host->host_lock, flags);
+	}
 }
 
 static inline void ufshcd_vops_setup_task_mgmt(struct ufs_hba *hba,