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authorJeffy Chen <jeffy.chen@rock-chips.com>2017-07-12 09:18:32 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-13 21:25:04 +0300
commit266530b34cb679188d5b2bd6e580b8105f4cb593 (patch)
tree00d175007ae4f5d32f914c95c49e82e9fe48c87a /drivers/gpu
parent4ca6df134847a6349620b485a3e63f00fb3bfad8 (diff)
downloadlinux-266530b34cb679188d5b2bd6e580b8105f4cb593.tar.xz
drm: Add missing field copy in compat_drm_version
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.chen@rock-chips.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/drm_ioc32.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 0b2d8c4a2fa5..d1f202852028 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;