switch compat_drm_markbufs() to drm_ioctl_kernel()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index e625a8d..657fbe0 100644 (file)
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -348,21 +348,17 @@ static int compat_drm_markbufs(struct file *file, unsigned int cmd,
 {
        drm_buf_desc32_t b32;
        drm_buf_desc32_t __user *argp = (void __user *)arg;
-       struct drm_buf_desc __user *buf;
+       struct drm_buf_desc __user buf;
 
        if (copy_from_user(&b32, argp, sizeof(b32)))
                return -EFAULT;
 
-       buf = compat_alloc_user_space(sizeof(*buf));
-       if (!buf)
-               return -EFAULT;
-
-       if (__put_user(b32.size, &buf->size)
-           || __put_user(b32.low_mark, &buf->low_mark)
-           || __put_user(b32.high_mark, &buf->high_mark))
-               return -EFAULT;
+       buf.size = b32.size;
+       buf.low_mark = b32.low_mark;
+       buf.high_mark = b32.high_mark;
 
-       return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
+       return drm_ioctl_kernel(file, drm_legacy_markbufs, &buf,
+                               DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY);
 }
 
 typedef struct drm_buf_info32 {
@@ -1016,7 +1012,7 @@ static struct {
        DRM_IOCTL32_DEF(DRM_IOCTL_SET_UNIQUE, compat_drm_setunique),
        DRM_IOCTL32_DEF(DRM_IOCTL_ADD_MAP, compat_drm_addmap),
        DRM_IOCTL32_DEF(DRM_IOCTL_ADD_BUFS, compat_drm_addbufs),
-       [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)].fn = compat_drm_markbufs,
+       DRM_IOCTL32_DEF(DRM_IOCTL_MARK_BUFS, compat_drm_markbufs),
        DRM_IOCTL32_DEF(DRM_IOCTL_INFO_BUFS, compat_drm_infobufs),
        [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)].fn = compat_drm_mapbufs,
        [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)].fn = compat_drm_freebufs,