4 files changed, 35 insertions, 4 deletions

diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c
index a0b6d414953d..59fbef08d690 100644
--- a/drivers/scsi/esp_scsi.c
+++ b/drivers/scsi/esp_scsi.c
@@ -2359,6 +2359,24 @@ void scsi_esp_unregister(struct esp *esp)
 }
 EXPORT_SYMBOL(scsi_esp_unregister);
 
+static int esp_target_alloc(struct scsi_target *starget)
+{
+        struct esp *esp = shost_priv(dev_to_shost(&starget->dev));
+        struct esp_target_data *tp = &esp->target[starget->id];
+
+        tp->starget = starget;
+
+        return 0;
+}
+
+static void esp_target_destroy(struct scsi_target *starget)
+{
+        struct esp *esp = shost_priv(dev_to_shost(&starget->dev));
+        struct esp_target_data *tp = &esp->target[starget->id];
+
+        tp->starget = NULL;
+}
+
 static int esp_slave_alloc(struct scsi_device *dev)
 {
         struct esp *esp = shost_priv(dev->host);
@@ -2370,8 +2388,6 @@ static int esp_slave_alloc(struct scsi_device *dev)
                 return -ENOMEM;
         dev->hostdata = lp;
 
-        tp->starget = dev->sdev_target;
-
         spi_min_period(tp->starget) = esp->min_period;
         spi_max_offset(tp->starget) = 15;
 
@@ -2608,6 +2624,8 @@ struct scsi_host_template scsi_esp_template = {
         .name                   = "esp",
         .info                   = esp_info,
         .queuecommand           = esp_queuecommand,
+        .target_alloc           = esp_target_alloc,
+        .target_destroy         = esp_target_destroy,
         .slave_alloc            = esp_slave_alloc,
         .slave_configure        = esp_slave_configure,
         .slave_destroy          = esp_slave_destroy,
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 999e91ea7451..e7a3a6554425 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -71,6 +71,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/libata.h>
+#include <linux/hdreg.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/processor.h>
@@ -4913,8 +4914,11 @@ static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
         struct ipr_resource_entry *res;
 
         res = (struct ipr_resource_entry *)sdev->hostdata;
-        if (res && ipr_is_gata(res))
+        if (res && ipr_is_gata(res)) {
+                if (cmd == HDIO_GET_IDENTITY)
+                        return -ENOTTY;
                 return ata_scsi_ioctl(sdev, cmd, arg);
+        }
 
         return -EINVAL;
 }
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index a82d2fe80fb5..cbf55d59a54c 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -207,6 +207,15 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
          */
         blk_execute_rq(req->q, NULL, req, 1);
 
+        /*
+         * Some devices (USB mass-storage in particular) may transfer
+         * garbage data together with a residue indicating that the data
+         * is invalid.  Prevent the garbage from being misinterpreted
+         * and prevent security leaks by zeroing out the excess data.
+         */
+        if (unlikely(req->data_len > 0 && req->data_len <= bufflen))
+                memset(buffer + (bufflen - req->data_len), 0, req->data_len);
+
         ret = req->errors;
  out:
         blk_put_request(req);
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index 45df83b9d847..0fe031f003e7 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -61,7 +61,7 @@ static int ses_probe(struct device *dev)
         return err;
 }
 
-#define SES_TIMEOUT 30
+#define SES_TIMEOUT (30 * HZ)
 #define SES_RETRIES 3
 
 static int ses_recv_diag(struct scsi_device *sdev, int page_code,