[S390] 3215: Handle special console device.

The early console device is special as it already has all needed data
set and raw3215[0] allocated from con3215_init(). Therefore, it needs
special treatment in the probe function so it can be matched with the
3215 driver which is already owning it.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 6000bdee4082..0e1f35c9ed9d 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -667,6 +667,9 @@ raw3215_probe (struct ccw_device *cdev)
         struct raw3215_info *raw;
         int line;
 
+        /* Console is special. */
+        if (raw3215[0] && (cdev->dev.driver_data == raw3215[0]))
+                return 0;
         raw = kmalloc(sizeof(struct raw3215_info) +
                       RAW3215_INBUF_SIZE, GFP_KERNEL|GFP_DMA);
         if (raw == NULL)