[S390] cio: fix drvdata usage for the console subchannel

Using dev_set_drvdata prior to device_register will force the driver core
to kmalloc its private data. Since we use this for the console subchannel
lets set the drvdata before taking the subchannels spinlock.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 73901c9e260..a6c7d5426fb 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1519,6 +1519,7 @@ static int ccw_device_console_enable(struct ccw_device *cdev,
         sch->driver = &io_subchannel_driver;
         /* Initialize the ccw_device structure. */
         cdev->dev.parent= &sch->dev;
+        sch_set_cdev(sch, cdev);
         io_subchannel_recog(cdev, sch);
         /* Now wait for the async. recognition to come to an end. */
         spin_lock_irq(cdev->ccwlock);