[PATCH] drm/i915: Fix some NULL vs IS_ERR() conditions

[Chris Wilson]

Quoting Dan Carpenter (2019-08-07 13:28:32)
> There were several places which check for NULL when they should have
> been checking for IS_ERR().
> 
> Fixes: d8af05ff38ae ("drm/i915: Allow sharing the idle-barrier from other kernel requests")
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

Oops,
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>

Thanks,
-Chris