[PATCH 29/44] drm/i915: Remove user controllable DRM_ERROR for i915_getparam()

[Chris Wilson <chris@chris-wilson.co.uk>]

The GETPARAM ioctl writes to a user supplied address. If that address is
invalid, it is the user's error and not the driver's, so quietly report
EFAULT and don't blame ourselves with a DRM_ERROR.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_drv.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 6104ff2f6666..31f6363d6135 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -752,10 +752,8 @@ static int i915_getparam(struct drm_device *dev, void *data,
 		return -EINVAL;
 	}
 
-	if (copy_to_user(param->value, &value, sizeof(int))) {
-		DRM_ERROR("copy_to_user failed\n");
+	if (put_user(value, param->value))
 		return -EFAULT;
-	}
 
 	return 0;
 }
-- 
2.8.1

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