1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 674a65c1a130..54943da6e4e5 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -800,11 +800,17 @@ int set_io_32bit(ide_drive_t *drive, int arg)
         if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
                 return -EINVAL;
 
+        if (ide_spin_wait_hwgroup(drive))
+                return -EBUSY;
+
         drive->io_32bit = arg;
 #ifdef CONFIG_BLK_DEV_DTC2278
         if (HWIF(drive)->chipset == ide_dtc2278)
                 HWIF(drive)->drives[!drive->select.b.unit].io_32bit = arg;
 #endif /* CONFIG_BLK_DEV_DTC2278 */
+
+        spin_unlock_irq(&ide_lock);
+
         return 0;
 }
 
@@ -1670,10 +1676,34 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
         return sprintf(buf, "ide:m-%s\n", media_string(drive));
 }
 
+static ssize_t model_show(struct device *dev, struct device_attribute *attr,
+                          char *buf)
+{
+        ide_drive_t *drive = to_ide_device(dev);
+        return sprintf(buf, "%s\n", drive->id->model);
+}
+
+static ssize_t firmware_show(struct device *dev, struct device_attribute *attr,
+                             char *buf)
+{
+        ide_drive_t *drive = to_ide_device(dev);
+        return sprintf(buf, "%s\n", drive->id->fw_rev);
+}
+
+static ssize_t serial_show(struct device *dev, struct device_attribute *attr,
+                           char *buf)
+{
+        ide_drive_t *drive = to_ide_device(dev);
+        return sprintf(buf, "%s\n", drive->id->serial_no);
+}
+
 static struct device_attribute ide_dev_attrs[] = {
         __ATTR_RO(media),
         __ATTR_RO(drivename),
         __ATTR_RO(modalias),
+        __ATTR_RO(model),
+        __ATTR_RO(firmware),
+        __ATTR(serial, 0400, serial_show, NULL),
         __ATTR_NULL
 };