[SCSI] sg: set class_data after success
If cdev_add fails in sg_add, sg_remove crashes since class_data is
bogus.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index e65f5d4..ebbf9b4 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1422,7 +1422,6 @@
goto out;
}
- class_set_devdata(cl_dev, sdp);
error = cdev_add(cdev, MKDEV(SCSI_GENERIC_MAJOR, sdp->index), 1);
if (error)
goto cdev_add_err;
@@ -1451,6 +1450,8 @@
"Attached scsi generic sg%d type %d\n", sdp->index,
scsidp->type);
+ class_set_devdata(cl_dev, sdp);
+
return 0;
cdev_add_err:
