drm: remove redundant minor->device field

Whenever we access minor->device, we are in a minor->kdev->...->fops
callback so the minor->kdev pointer *must* be valid. Thus, simply use
minor->kdev->devt instead of minor->device and remove the redundant field.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

3 files changed, 3 insertions, 4 deletions

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 345be03c23db..ec651be2f3cb 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -344,7 +344,7 @@ long drm_ioctl(struct file *filp,
 
         DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n",
                   task_pid_nr(current),
-                  (long)old_encode_dev(file_priv->minor->device),
+                  (long)old_encode_dev(file_priv->minor->kdev->devt),
                   file_priv->authenticated, ioctl->name);
 
         /* Do not trust userspace, use our own definition */
@@ -402,7 +402,7 @@ long drm_ioctl(struct file *filp,
         if (!ioctl)
                 DRM_DEBUG("invalid ioctl: pid=%d, dev=0x%lx, auth=%d, cmd=0x%02x, nr=0x%02x\n",
                           task_pid_nr(current),
-                          (long)old_encode_dev(file_priv->minor->device),
+                          (long)old_encode_dev(file_priv->minor->kdev->devt),
                           file_priv->authenticated, cmd, nr);
 
         if (kdata != stack_kdata)
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 79478191404a..4ce5318d14bc 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -471,7 +471,7 @@ int drm_release(struct inode *inode, struct file *filp)
 
         DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
                   task_pid_nr(current),
-                  (long)old_encode_dev(file_priv->minor->device),
+                  (long)old_encode_dev(file_priv->minor->kdev->devt),
                   dev->open_count);
 
         /* Release any auth tokens that might point to this file_priv,
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index fe9595b750ea..96fe5dec3822 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -318,7 +318,6 @@ static int drm_minor_register(struct drm_device *dev, unsigned int type)
         if (minor_id < 0)
                 return minor_id;
 
-        new_minor->device = MKDEV(DRM_MAJOR, minor_id);
         new_minor->index = minor_id;
 
         idr_replace(&drm_minors_idr, new_minor, minor_id);