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drm/i915/execlists: Avoid putting the error pointer 

On allocation error, do not jump to the unwind handler that tries to
free the error pointer.

Reported-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: a89d1f921c ("drm/i915: Split i915_gem_timeline into individual timelines")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180611153332.14824-1-chris@chris-wilson.co.uk
(cherry picked from commit 467d35789e)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
hifive-unleashed-5.1
Chris Wilson 2018-06-11 16:33:32 +01:00 committed by Jani Nikula
parent 7ba33e1c9d
commit a5bfcdf0e1
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/i915/intel_lrc.c
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@ -2641,10 +2641,8 @@ static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
context_size += LRC_HEADER_PAGES * PAGE_SIZE;
ctx_obj = i915_gem_object_create(ctx->i915, context_size);
if (IS_ERR(ctx_obj)) {
ret = PTR_ERR(ctx_obj);
goto error_deref_obj;
}
if (IS_ERR(ctx_obj))
return PTR_ERR(ctx_obj);
vma = i915_vma_instance(ctx_obj, &ctx->i915->ggtt.base, NULL);
if (IS_ERR(vma)) {