Quoting Chris Wilson (2018-06-20 14:24:41)
> Along the early error path for igt_switch_to_kernel_context we may try
> to dereference an invalid error pointer. Instead, return early rather
> than dump the GEM trace since we haven't yet emitted anything of
> interest.
> 
> Reported-by: Dan Carpenter <dan.carpen...@oracle.com>
> Fixes: 09a4c02e58c1 ("drm/i915: Look for an active kernel context before 
> switching")
> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuopp...@intel.com>
> Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>

Reviewed-by: Joonas Lahtinen <joonas.lahti...@linux.intel.com>

Regards, Joonas
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