ASoC: Intel: Skylake: Fix potential null pointer dereference

Check if the next sink is not null to avoid potential null pointer
dereference in skl_tplg_bind_sinks().

Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index 68c3f12..8c3ce08 100644 (file)
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -925,7 +925,7 @@ static int skl_tplg_bind_sinks(struct snd_soc_dapm_widget *w,
                }
        }
 
-       if (!sink)
+       if (!sink && next_sink)
                return skl_tplg_bind_sinks(next_sink, skl, src_w, src_mconfig);
 
        return 0;