bo->resource could be NULL hence add a NULL check for bo->resource before dereferencing it. References: https://gitlab.freedesktop.org/drm/intel/-/issues/6850 Fixes: ad74457a6b5a96 ("drm/i915/dgfx: Release mmap on rpm suspend") Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxxxx> --- drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c index 0544b0a4a43a..8608801cd9ab 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c @@ -513,7 +513,7 @@ static void i915_ttm_delete_mem_notify(struct ttm_buffer_object *bo) if (likely(obj)) { /* ttm_bo_release() already has dma_resv_lock */ - if (i915_ttm_cpu_maps_iomem(bo->resource)) + if (bo->resource && i915_ttm_cpu_maps_iomem(bo->resource)) wakeref = intel_runtime_pm_get(&to_i915(obj->base.dev)->runtime_pm); __i915_gem_object_pages_fini(obj); -- 2.37.3
