From: Chandra Seetharaman <sekharan@xxxxxxxxxx>
scsi_dh odule is getting inserted as soon as the first device is seen.
But, the first device is not seen by the module as we were past the
ADD_DEVICE handling in the module.
Catch the first device by handling BUS_NOTIFY_BOUND_DRIVER event,
and not handle that event for any of the future devices (as they would
have been handled by ADD_DEVICE event).
Signed-off-by: Chandra Seetharaman <sekharan@xxxxxxxxxx>
Signed-off-by: Peter Jones <pjones@xxxxxxxxxx>
---
drivers/scsi/device_handler/scsi_dh.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
Index: linux-2.6.28/drivers/scsi/device_handler/scsi_dh.c
===================================================================
--- linux-2.6.28.orig/drivers/scsi/device_handler/scsi_dh.c
+++ linux-2.6.28/drivers/scsi/device_handler/scsi_dh.c
@@ -294,7 +294,16 @@ static int scsi_dh_notifier(struct notif
sdev = to_scsi_device(dev);
- if (action == BUS_NOTIFY_ADD_DEVICE) {
+ if ((action == BUS_NOTIFY_ADD_DEVICE) ||
+ (action == BUS_NOTIFY_BOUND_DRIVER)) {
+ /*
+ * This can happen if device was configured already
+ * with BUS_NOTIFY_ADD_DEVICE and we are called
+ * now with BUS_NOTIFY_BOUND_DRIVER
+ */
+ if (sdev->scsi_dh_data)
+ goto out;
+
devinfo = device_handler_match(NULL, sdev);
if (!devinfo)
goto out;
--
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