3 files changed, 12 insertions, 3 deletions

diff --git a/drivers/scsi/dpt/dptsig.h b/drivers/scsi/dpt/dptsig.h
index 72c8992fdf21..a6644b332b53 100644
--- a/drivers/scsi/dpt/dptsig.h
+++ b/drivers/scsi/dpt/dptsig.h
@@ -85,7 +85,7 @@ typedef unsigned int sigINT;
 /* ------------------------------------------------------------------ */
 /* What type of processor the file is meant to run on. */
 /* This will let us know whether to read sigWORDs as high/low or low/high. */
-#define PROC_INTEL      0x00    /* Intel 80x86 */
+#define PROC_INTEL      0x00    /* Intel 80x86/ia64 */
 #define PROC_MOTOROLA   0x01    /* Motorola 68K */
 #define PROC_MIPS4000   0x02    /* MIPS RISC 4000 */
 #define PROC_ALPHA      0x03    /* DEC Alpha */
@@ -104,6 +104,7 @@ typedef unsigned int sigINT;
 #define PROC_486        0x08    /* Intel 80486 */
 #define PROC_PENTIUM    0x10    /* Intel 586 aka P5 aka Pentium */
 #define PROC_SEXIUM     0x20    /* Intel 686 aka P6 aka Pentium Pro or MMX */
+#define PROC_IA64       0x40    /* Intel IA64 processor */
 
 /* PROC_i960: */
 #define PROC_960RX      0x01    /* Intel 80960RC/RD */
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 3690360d7a79..c6457bfc8a49 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -456,6 +456,10 @@ static int __scsi_host_match(struct device *dev, void *data)
  *
  * Return value:
  *      A pointer to located Scsi_Host or NULL.
+ *
+ *      The caller must do a scsi_host_put() to drop the reference
+ *      that scsi_host_get() took. The put_device() below dropped
+ *      the reference from class_find_device().
  **/
 struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)
 {
@@ -463,9 +467,10 @@ struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)
         struct Scsi_Host *shost = ERR_PTR(-ENXIO);
 
         cdev = class_find_device(&shost_class, &hostnum, __scsi_host_match);
-        if (cdev)
+        if (cdev) {
                 shost = scsi_host_get(class_to_shost(cdev));
-
+                put_device(cdev);
+        }
         return shost;
 }
 EXPORT_SYMBOL(scsi_host_lookup);
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 7ee86d4a7618..c82df8bd4d89 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -178,6 +178,9 @@ int sr_test_unit_ready(struct scsi_device *sdev, struct scsi_sense_hdr *sshdr)
                 the_result = scsi_execute_req(sdev, cmd, DMA_NONE, NULL,
                                               0, sshdr, SR_TIMEOUT,
                                               retries--);
+                if (scsi_sense_valid(sshdr) &&
+                    sshdr->sense_key == UNIT_ATTENTION)
+                        sdev->changed = 1;
 
         } while (retries > 0 &&
                  (!scsi_status_is_good(the_result) ||