[PATCH] use device_for_each_child() to properly access child devices.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index c87ae469d70793532eeef77d901027020b45b374..2918b9600db7af2e2fb0970d518bef6ef32f337b 100644 (file)
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -348,17 +348,21 @@ spi_transport_rd_attr(rd_strm, "%d\n");
 spi_transport_rd_attr(rti, "%d\n");
 spi_transport_rd_attr(pcomp_en, "%d\n");
 
+/* we only care about the first child device so we return 1 */
+static int child_iter(struct device *dev, void *data)
+{
+       struct scsi_device *sdev = to_scsi_device(dev);
+
+       spi_dv_device(sdev);
+       return 1;
+}
+
 static ssize_t
 store_spi_revalidate(struct class_device *cdev, const char *buf, size_t count)
 {
        struct scsi_target *starget = transport_class_to_starget(cdev);
 
-       /* FIXME: we're relying on an awful lot of device internals
-        * here.  We really need a function to get the first available
-        * child */
-       struct device *dev = container_of(starget->dev.children.next, struct device, node);
-       struct scsi_device *sdev = to_scsi_device(dev);
-       spi_dv_device(sdev);
+       device_for_each_child(&starget->dev, NULL, child_iter);
        return count;
 }
 static CLASS_DEVICE_ATTR(revalidate, S_IWUSR, NULL, store_spi_revalidate);