From: Thierry Reding <treding@nvidia.com>
Date: Mon, 21 Jul 2014 11:24:37 +0000 (+0200)
Subject: drm: Add missing __user annotation
X-Git-Tag: firefly_0821_release~176^2~3450^2~45
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d3cf40ed7fa1b56bd53d3b52eddf44d0e3c3ec20;p=firefly-linux-kernel-4.4.55.git

drm: Add missing __user annotation

The drm_copy_field() function copies strings into userspace buffers, so
the first parameter needs to have a __user annotation to avoid warnings
from the sparse checker.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 8218078b6133..0cc182745e31 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -233,7 +233,7 @@ module_exit(drm_core_exit);
 /**
  * Copy and IOCTL return string to user space
  */
-static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
+static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
 {
 	int len;