[PATCH] drm: Add missing field copy in compat_drm_version

[Jeffy Chen]

DRM_IOCTL_VERSION is supposed to update the name_len/date_len/desc_len
fields to user.

Fixes: 012c6741c6aa("switch compat_drm_version() to drm_ioctl_kernel()")
Signed-off-by: Jeffy Chen <jeffy.c...@rock-chips.com>

---

 drivers/gpu/drm/drm_ioc32.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 94acf51..2789356 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -112,6 +112,9 @@ static int compat_drm_version(struct file *file, unsigned 
int cmd,
        v32.version_major = v.version_major;
        v32.version_minor = v.version_minor;
        v32.version_patchlevel = v.version_patchlevel;
+       v32.name_len = v.name_len;
+       v32.date_len = v.date_len;
+       v32.desc_len = v.desc_len;
        if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
                return -EFAULT;
        return 0;
-- 
2.1.4