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authorAl Viro <viro@zeniv.linux.org.uk>2017-05-24 21:20:21 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2017-05-27 22:39:31 +0300
commit56c275ccfba8c992544a8ec46439f7d0ff21177f (patch)
treeba0704cc78c6096633337890fbd94669a602149e /drivers/gpu/drm/drm_ioc32.c
parent17e3dade62d6e95131ceba1535eb8d2e84b2e040 (diff)
downloadlinux-56c275ccfba8c992544a8ec46439f7d0ff21177f.tar.xz
compat_drm_setunique(): don't bother
native equivalent would just fail with -EINVAL; do the same directly. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/gpu/drm/drm_ioc32.c')
-rw-r--r--drivers/gpu/drm/drm_ioc32.c19
1 files changed, 3 insertions, 16 deletions
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index e07ade98c29b..da2377cd86c2 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -148,21 +148,8 @@ static int compat_drm_getunique(struct file *file, unsigned int cmd,
static int compat_drm_setunique(struct file *file, unsigned int cmd,
unsigned long arg)
{
- drm_unique32_t uq32;
- struct drm_unique __user *u;
-
- if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
- return -EFAULT;
-
- u = compat_alloc_user_space(sizeof(*u));
- if (!u)
- return -EFAULT;
- if (__put_user(uq32.unique_len, &u->unique_len)
- || __put_user((void __user *)(unsigned long)uq32.unique,
- &u->unique))
- return -EFAULT;
-
- return drm_ioctl(file, DRM_IOCTL_SET_UNIQUE, (unsigned long)u);
+ /* it's dead */
+ return -EINVAL;
}
typedef struct drm_map32 {
@@ -1071,7 +1058,7 @@ static struct {
[DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)].fn = compat_drm_getmap,
[DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)].fn = compat_drm_getclient,
[DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)].fn = compat_drm_getstats,
- [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)].fn = compat_drm_setunique,
+ DRM_IOCTL32_DEF(DRM_IOCTL_SET_UNIQUE, compat_drm_setunique),
[DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)].fn = compat_drm_addmap,
DRM_IOCTL32_DEF(DRM_IOCTL_ADD_BUFS, compat_drm_addbufs),
[DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)].fn = compat_drm_markbufs,