From 4ede00c96632bcf8a21dd69ac0248f4c40b4cd0e Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 10 Jul 2010 16:30:04 +0200 Subject: [PATCH] vmwgfx: return -EFAULT if copy_to_user fails copy_to_user() returns the number of bytes remaining to be copied, but we want to return a negative error code. This gets copied to user space. Signed-off-by: Dan Carpenter Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index f1d626112415..437ac786277a 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -972,6 +972,7 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, ret = copy_from_user(rects, user_rects, rects_size); if (unlikely(ret != 0)) { DRM_ERROR("Failed to get rects.\n"); + ret = -EFAULT; goto out_free; } -- 2.20.1