1 files changed, 21 insertions, 0 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index ffcda7ecd832..8e26c2bc7fdf 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2194,6 +2194,27 @@ static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm,
         struct snd_soc_dapm_path *path;
         int ret;
 
+        if (wsink->is_supply && !wsource->is_supply) {
+                dev_err(dapm->dev,
+                        "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n",
+                        wsource->name, wsink->name);
+                return -EINVAL;
+        }
+
+        if (connected && !wsource->is_supply) {
+                dev_err(dapm->dev,
+                        "connected() callback only supported for supply widgets (%s -> %s)\n",
+                        wsource->name, wsink->name);
+                return -EINVAL;
+        }
+
+        if (wsource->is_supply && control) {
+                dev_err(dapm->dev,
+                        "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n",
+                        wsource->name, control, wsink->name);
+                return -EINVAL;
+        }
+
         path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL);
         if (!path)
                 return -ENOMEM;