Commit ffeaf9aa authored Aug 16, 2017 by fred gao Committed by Zhenyu Wang Aug 23, 2017

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



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: 894cf7d1 ("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>

parent d6086598

drivers/gpu/drm/i915/gvt/cmd_parser.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}

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