[SCSI] mpt fusion: cleanup eh handlers

nice cosmetic cleaning of eh thread callback funtions

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 77 insertions, 55 deletions

diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index d1538eb6a5..f0456d26a4 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -1727,20 +1727,35 @@ mptscsih_abort(struct scsi_cmnd * SCpnt)
         u32              ctx2abort;
         int              scpnt_idx;
         int              retval;
-        VirtDevice       *vdev;
+        VirtDevice       *vdevice;
         ulong            sn = SCpnt->serial_number;
+        MPT_ADAPTER     *ioc;
 
         /* If we can't locate our host adapter structure, return FAILED status.
          */
         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL) {
                 SCpnt->result = DID_RESET << 16;
                 SCpnt->scsi_done(SCpnt);
-                dfailprintk((KERN_INFO MYNAM ": mptscsih_abort: "
-                           "Can't locate host! (sc=%p)\n",
-                           SCpnt));
+                dfailprintk((KERN_INFO MYNAM ": mptscsih_abort: Can't locate "
+                    "host! (sc=%p)\n", SCpnt));
                 return FAILED;
         }
 
+        ioc = hd->ioc;
+        printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
+               ioc->name, SCpnt);
+        scsi_print_command(SCpnt);
+
+        vdevice = SCpnt->device->hostdata;
+        if (!vdevice || !vdevice->vtarget) {
+                dtmprintk((MYIOC_s_DEBUG_FMT "task abort: device has been "
+                    "deleted (sc=%p)\n", ioc->name, SCpnt));
+                SCpnt->result = DID_NO_CONNECT << 16;
+                SCpnt->scsi_done(SCpnt);
+                retval = 0;
+                goto out;
+        }
+
         /* Find this command
          */
         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(SCpnt)) < 0) {
@@ -1749,21 +1764,20 @@ mptscsih_abort(struct scsi_cmnd * SCpnt)
                  */
                 SCpnt->result = DID_RESET << 16;
                 dtmprintk((KERN_INFO MYNAM ": %s: mptscsih_abort: "
-                           "Command not in the active list! (sc=%p)\n",
-                           hd->ioc->name, SCpnt));
-                return SUCCESS;
+                   "Command not in the active list! (sc=%p)\n", ioc->name,
+                   SCpnt));
+                retval = 0;
+                goto out;
         }
 
-        if (hd->resetPending)
-                return FAILED;
+        if (hd->resetPending) {
+                retval = FAILED;
+                goto out;
+        }
 
         if (hd->timeouts < -1)
                 hd->timeouts++;
 
-        printk(KERN_WARNING MYNAM ": %s: attempting task abort! (sc=%p)\n",
-               hd->ioc->name, SCpnt);
-        scsi_print_command(SCpnt);
-
         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
          * (the IO to be ABORT'd)
          *
@@ -1776,18 +1790,17 @@ mptscsih_abort(struct scsi_cmnd * SCpnt)
 
         hd->abortSCpnt = SCpnt;
 
-        vdev = SCpnt->device->hostdata;
         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
-                vdev->vtarget->channel, vdev->vtarget->id, vdev->lun,
-                ctx2abort, mptscsih_get_tm_timeout(hd->ioc));
+            vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun,
+            ctx2abort, mptscsih_get_tm_timeout(ioc));
 
         if (SCPNT_TO_LOOKUP_IDX(SCpnt) == scpnt_idx &&
             SCpnt->serial_number == sn)
                 retval = FAILED;
 
-        printk (KERN_WARNING MYNAM ": %s: task abort: %s (sc=%p)\n",
-                hd->ioc->name,
-                ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
+ out:
+        printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
+            ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
 
         if (retval == 0)
                 return SUCCESS;
@@ -1809,32 +1822,40 @@ mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
 {
         MPT_SCSI_HOST   *hd;
         int              retval;
-        VirtDevice       *vdev;
+        VirtDevice       *vdevice;
+        MPT_ADAPTER     *ioc;
 
         /* If we can't locate our host adapter structure, return FAILED status.
          */
         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
-                dtmprintk((KERN_INFO MYNAM ": mptscsih_dev_reset: "
-                           "Can't locate host! (sc=%p)\n",
-                           SCpnt));
+                dtmprintk((KERN_INFO MYNAM ": mptscsih_dev_reset: Can't "
+                    "locate host! (sc=%p)\n", SCpnt));
                 return FAILED;
         }
 
-        if (hd->resetPending)
-                return FAILED;
-
-        printk(KERN_WARNING MYNAM ": %s: attempting target reset! (sc=%p)\n",
-               hd->ioc->name, SCpnt);
+        ioc = hd->ioc;
+        printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
+               ioc->name, SCpnt);
         scsi_print_command(SCpnt);
 
-        vdev = SCpnt->device->hostdata;
+        if (hd->resetPending) {
+                retval = FAILED;
+                goto out;
+        }
+
+        vdevice = SCpnt->device->hostdata;
+        if (!vdevice || !vdevice->vtarget) {
+                retval = 0;
+                goto out;
+        }
+
         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
-                vdev->vtarget->channel, vdev->vtarget->id,
-                0, 0, mptscsih_get_tm_timeout(hd->ioc));
+            vdevice->vtarget->channel, vdevice->vtarget->id, 0, 0,
+            mptscsih_get_tm_timeout(ioc));
 
-        printk (KERN_WARNING MYNAM ": %s: target reset: %s (sc=%p)\n",
-                hd->ioc->name,
-                ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
+ out:
+        printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
+            ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
 
         if (retval == 0)
                 return SUCCESS;
@@ -1858,18 +1879,19 @@ mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
         MPT_SCSI_HOST   *hd;
         int              retval;
         VirtDevice       *vdev;
+        MPT_ADAPTER     *ioc;
 
         /* If we can't locate our host adapter structure, return FAILED status.
          */
         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
-                dtmprintk((KERN_INFO MYNAM ": mptscsih_bus_reset: "
-                           "Can't locate host! (sc=%p)\n",
-                           SCpnt ) );
+                dtmprintk((KERN_INFO MYNAM ": mptscsih_bus_reset: Can't "
+                    "locate host! (sc=%p)\n", SCpnt ));
                 return FAILED;
         }
 
-        printk(KERN_WARNING MYNAM ": %s: attempting bus reset! (sc=%p)\n",
-               hd->ioc->name, SCpnt);
+        ioc = hd->ioc;
+        printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
+               ioc->name, SCpnt);
         scsi_print_command(SCpnt);
 
         if (hd->timeouts < -1)
@@ -1877,11 +1899,10 @@ mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
 
         vdev = SCpnt->device->hostdata;
         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
-                vdev->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(hd->ioc));
+            vdev->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(ioc));
 
-        printk (KERN_WARNING MYNAM ": %s: bus reset: %s (sc=%p)\n",
-                hd->ioc->name,
-                ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
+        printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
+            ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
 
         if (retval == 0)
                 return SUCCESS;
@@ -1902,37 +1923,38 @@ int
 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
 {
         MPT_SCSI_HOST *  hd;
-        int              status = SUCCESS;
+        int              retval;
+        MPT_ADAPTER     *ioc;
 
         /*  If we can't locate the host to reset, then we failed. */
         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
-                dtmprintk( ( KERN_INFO MYNAM ": mptscsih_host_reset: "
-                             "Can't locate host! (sc=%p)\n",
-                             SCpnt ) );
+                dtmprintk( ( KERN_INFO MYNAM ": mptscsih_host_reset: Can't "
+                    "locate host! (sc=%p)\n", SCpnt));
                 return FAILED;
         }
 
-        printk(KERN_WARNING MYNAM ": %s: Attempting host reset! (sc=%p)\n",
-               hd->ioc->name, SCpnt);
+        ioc = hd->ioc;
+        printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
+            ioc->name, SCpnt);
 
         /*  If our attempts to reset the host failed, then return a failed
          *  status.  The host will be taken off line by the SCSI mid-layer.
          */
-        if (mpt_HardResetHandler(hd->ioc, CAN_SLEEP) < 0){
-                status = FAILED;
+        if (mpt_HardResetHandler(hd->ioc, CAN_SLEEP) < 0) {
+                retval = FAILED;
         } else {
                 /*  Make sure TM pending is cleared and TM state is set to
                  *  NONE.
                  */
+                retval = 0;
                 hd->tmPending = 0;
                 hd->tmState = TM_STATE_NONE;
         }
 
-        dtmprintk( ( KERN_INFO MYNAM ": mptscsih_host_reset: "
-                     "Status = %s\n",
-                     (status == SUCCESS) ? "SUCCESS" : "FAILED" ) );
+        printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
+            ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
 
-        return status;
+        return retval;
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/