drm: proc: Use minor->index to label things, not PDE->name

Use minor->index to label things, not the name field from the proc_dir_entry
of the /proc/dwm/<minor>/ directory.

Also, use "%u" not "%d" to render the value and use a 12-byte buffer in which
to render the integer, not a 16-byte buffer.  The longest string an unsigned
int can give you is 10 chars (4294967295) plus a NUL, so round up to 12 as the
stack is likely to be 4- or 8-byte aligned.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: dri-devel@lists.freedesktop.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index af53320..60c33f1 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1546,8 +1546,7 @@
 extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
 
 				/* Proc support (drm_proc.h) */
-extern int drm_proc_init(struct drm_minor *minor, int minor_id,
-			 struct proc_dir_entry *root);
+extern int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root);
 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
 
 				/* Debugfs support */