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drm/i915/gvt: Fix the kernel null pointer error

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once error happens in shadow_indirect_ctx function, the variable
wa_ctx->indirect_ctx.obj is not initialized but accessed, so the
kernel null point panic occurs.

Fixes: 894cf7d156 ("drm/i915/gvt: i915_gem_object_create() returns an error pointer")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: fred gao <fred.gao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
fred gao 2017-08-16 15:48:03 +08:00 committed by Zhenyu Wang
parent d6086598d3
commit ffeaf9aaf9
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/gvt/cmd_parser.c
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@ -2714,7 +2714,7 @@ static int shadow_indirect_ctx(struct intel_shadow_wa_ctx *wa_ctx)
unmap_src:
i915_gem_object_unpin_map(obj);
put_obj:
i915_gem_object_put(wa_ctx->indirect_ctx.obj);
i915_gem_object_put(obj);
return ret;
}