[patch] i915: return -EFAULT if copy_to_user fails

[Dan Carpenter]

On Wed, Jun 23, 2010 at 07:03:01PM +0200, Dan Carpenter wrote:
> copy_to_user() returns the number of bytes remaining to be copied and
> I'm pretty sure we want to return a negative error code here.
> 

This patch wasn't applied either.

regards,
dan carpenter


> Signed-off-by: Dan Carpenter <error27 at gmail.com>
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 9ded3da..22691b4 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -3707,6 +3707,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
>  		if (ret != 0) {
>  			DRM_ERROR("copy %d cliprects failed: %d\n",
>  				  args->num_cliprects, ret);
> +			ret = -EFAULT;
>  			goto pre_mutex_err;
>  		}
>  	}