6 files changed, 40 insertions, 29 deletions

diff --git a/drivers/scsi/aic7xxx/aic79xx.seq b/drivers/scsi/aic7xxx/aic79xx.seq
index 58bc17591b54..2fb78e35a9e5 100644
--- a/drivers/scsi/aic7xxx/aic79xx.seq
+++ b/drivers/scsi/aic7xxx/aic79xx.seq
@@ -217,7 +217,7 @@ BEGIN_CRITICAL;
 scbdma_tohost_done:
         test    CCSCBCTL, CCARREN jz fill_qoutfifo_dmadone;
         /*
-         * An SCB has been succesfully uploaded to the host.
+         * An SCB has been successfully uploaded to the host.
          * If the SCB was uploaded for some reason other than
          * bad SCSI status (currently only for underruns), we
          * queue the SCB for normal completion.  Otherwise, we
@@ -1281,7 +1281,7 @@ END_CRITICAL;
  * Is it a disconnect message?  Set a flag in the SCB to remind us
  * and await the bus going free.  If this is an untagged transaction
  * store the SCB id for it in our untagged target table for lookup on
- * a reselction.
+ * a reselection.
  */
 mesgin_disconnect:
         /*
diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c
index 63b521d615f2..78971db5b60e 100644
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -2487,7 +2487,7 @@ ahd_handle_scsiint(struct ahd_softc *ahd, u_int intstat)
                 /*
                  * Although the driver does not care about the
                  * 'Selection in Progress' status bit, the busy
-                 * LED does.  SELINGO is only cleared by a sucessfull
+                 * LED does.  SELINGO is only cleared by a successfull
                  * selection, so we must manually clear it to insure
                  * the LED turns off just incase no future successful
                  * selections occur (e.g. no devices on the bus).
@@ -3171,13 +3171,16 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
                                 tinfo->curr.transport_version = 2;
                                 tinfo->goal.transport_version = 2;
                                 tinfo->goal.ppr_options = 0;
-                                /*
-                                 * Remove any SCBs in the waiting for selection
-                                 * queue that may also be for this target so
-                                 * that command ordering is preserved.
-                                 */
-                                ahd_freeze_devq(ahd, scb);
-                                ahd_qinfifo_requeue_tail(ahd, scb);
+                                if (scb != NULL) {
+                                        /*
+                                         * Remove any SCBs in the waiting
+                                         * for selection queue that may
+                                         * also be for this target so that
+                                         * command ordering is preserved.
+                                         */
+                                        ahd_freeze_devq(ahd, scb);
+                                        ahd_qinfifo_requeue_tail(ahd, scb);
+                                }
                                 printerror = 0;
                         }
                 } else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_WDTR, FALSE)
@@ -3194,13 +3197,16 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
                                       MSG_EXT_WDTR_BUS_8_BIT,
                                       AHD_TRANS_CUR|AHD_TRANS_GOAL,
                                       /*paused*/TRUE);
-                        /*
-                         * Remove any SCBs in the waiting for selection
-                         * queue that may also be for this target so that
-                         * command ordering is preserved.
-                         */
-                        ahd_freeze_devq(ahd, scb);
-                        ahd_qinfifo_requeue_tail(ahd, scb);
+                        if (scb != NULL) {
+                                /*
+                                 * Remove any SCBs in the waiting for
+                                 * selection queue that may also be for
+                                 * this target so that command ordering
+                                 * is preserved.
+                                 */
+                                ahd_freeze_devq(ahd, scb);
+                                ahd_qinfifo_requeue_tail(ahd, scb);
+                        }
                         printerror = 0;
                 } else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_SDTR, FALSE)
                         && ppr_busfree == 0) {
@@ -3217,13 +3223,16 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
                                         /*ppr_options*/0,
                                         AHD_TRANS_CUR|AHD_TRANS_GOAL,
                                         /*paused*/TRUE);
-                        /*
-                         * Remove any SCBs in the waiting for selection
-                         * queue that may also be for this target so that
-                         * command ordering is preserved.
-                         */
-                        ahd_freeze_devq(ahd, scb);
-                        ahd_qinfifo_requeue_tail(ahd, scb);
+                        if (scb != NULL) {
+                                /*
+                                 * Remove any SCBs in the waiting for
+                                 * selection queue that may also be for
+                                 * this target so that command ordering
+                                 * is preserved.
+                                 */
+                                ahd_freeze_devq(ahd, scb);
+                                ahd_qinfifo_requeue_tail(ahd, scb);
+                        }
                         printerror = 0;
                 } else if ((ahd->msg_flags & MSG_FLAG_EXPECT_IDE_BUSFREE) != 0
                         && ahd_sent_msg(ahd, AHDMSG_1B,
@@ -3251,7 +3260,7 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
          * the message phases.  We check it last in case we
          * had to send some other message that caused a busfree.
          */
-        if (printerror != 0
+        if (scb != NULL && printerror != 0
          && (lastphase == P_MESGIN || lastphase == P_MESGOUT)
          && ((ahd->msg_flags & MSG_FLAG_EXPECT_PPR_BUSFREE) != 0)) {
 
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 75b23317bd26..4c41332a354b 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -53,6 +53,7 @@ static struct scsi_transport_template *ahd_linux_transport_template = NULL;
 #include <linux/blkdev.h>               /* For block_size() */
 #include <linux/delay.h>        /* For ssleep/msleep */
 #include <linux/device.h>
+#include <linux/slab.h>
 
 /*
  * Bucket size for counting good commands in between bad ones.
@@ -2335,7 +2336,7 @@ ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd)
                         /*
                          * The sequencer will never re-reference the
                          * in-core SCB.  To make sure we are notified
-                         * during reslection, set the MK_MESSAGE flag in
+                         * during reselection, set the MK_MESSAGE flag in
                          * the card's copy of the SCB.
                          */
                         ahd_outb(ahd, SCB_CONTROL,
diff --git a/drivers/scsi/aic7xxx/aic7xxx.seq b/drivers/scsi/aic7xxx/aic7xxx.seq
index 15196390e28d..5a4cfc954a9f 100644
--- a/drivers/scsi/aic7xxx/aic7xxx.seq
+++ b/drivers/scsi/aic7xxx/aic7xxx.seq
@@ -1693,7 +1693,7 @@ if ((ahc->flags & AHC_INITIATORROLE) != 0) {
  * Is it a disconnect message?  Set a flag in the SCB to remind us
  * and await the bus going free.  If this is an untagged transaction
  * store the SCB id for it in our untagged target table for lookup on
- * a reselction.
+ * a reselection.
  */
 mesgin_disconnect:
         /*
diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c
index 8dfb59d58992..45aa728a76b2 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_core.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_core.c
@@ -1733,7 +1733,7 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat)
                 /*
                  * Although the driver does not care about the
                  * 'Selection in Progress' status bit, the busy
-                 * LED does.  SELINGO is only cleared by a sucessfull
+                 * LED does.  SELINGO is only cleared by a successfull
                  * selection, so we must manually clear it to insure
                  * the LED turns off just incase no future successful
                  * selections occur (e.g. no devices on the bus).
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index fd2b9785ff4f..5e42dac23505 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -129,6 +129,7 @@ static struct scsi_transport_template *ahc_linux_transport_template = NULL;
 #include <linux/mm.h>           /* For fetching system memory size */
 #include <linux/blkdev.h>               /* For block_size() */
 #include <linux/delay.h>        /* For ssleep/msleep */
+#include <linux/slab.h>
 
 
 /*
@@ -2290,7 +2291,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
                  * In the non-paging case, the sequencer will
                  * never re-reference the in-core SCB.
                  * To make sure we are notified during
-                 * reslection, set the MK_MESSAGE flag in
+                 * reselection, set the MK_MESSAGE flag in
                  * the card's copy of the SCB.
                  */
                 if ((ahc->flags & AHC_PAGESCBS) == 0) {