[S390] tape: fix tape remove function

Fix a bug introduced with git commit dff59b64af94dc58:
 -       if (cdev->dev.driver_data != NULL) {
 +       if (!dev_get_drvdata(&cdev->dev)) {
These two are not equivalent.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index 27503a7..6311018 100644 (file)
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -665,7 +665,7 @@ tape_generic_remove(struct ccw_device *cdev)
                        tape_cleanup_device(device);
        }
 
-       if (!dev_get_drvdata(&cdev->dev)) {
+       if (dev_get_drvdata(&cdev->dev)) {
                sysfs_remove_group(&cdev->dev.kobj, &tape_attr_group);
                dev_set_drvdata(&cdev->dev, tape_put_device(dev_get_drvdata(&cdev->dev)));
        }