1 files changed, 9 insertions, 5 deletions

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 397d00aee43f..d8d5449cc48e 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3536,7 +3536,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
                                    const char *propname)
 {
         struct device_node *np = card->dev->of_node;
-        int num_routes;
+        int num_routes, old_routes;
         struct snd_soc_dapm_route *routes;
         int i, ret;
 
@@ -3554,7 +3554,9 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
                 return -EINVAL;
         }
 
-        routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes),
+        old_routes = card->num_dapm_routes;
+        routes = devm_kzalloc(card->dev,
+                              (old_routes + num_routes) * sizeof(*routes),
                               GFP_KERNEL);
         if (!routes) {
                 dev_err(card->dev,
@@ -3562,9 +3564,11 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
                 return -EINVAL;
         }
 
+        memcpy(routes, card->dapm_routes, old_routes * sizeof(*routes));
+
         for (i = 0; i < num_routes; i++) {
                 ret = of_property_read_string_index(np, propname,
-                        2 * i, &routes[i].sink);
+                        2 * i, &routes[old_routes + i].sink);
                 if (ret) {
                         dev_err(card->dev,
                                 "ASoC: Property '%s' index %d could not be read: %d\n",
@@ -3572,7 +3576,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
                         return -EINVAL;
                 }
                 ret = of_property_read_string_index(np, propname,
-                        (2 * i) + 1, &routes[i].source);
+                        (2 * i) + 1, &routes[old_routes + i].source);
                 if (ret) {
                         dev_err(card->dev,
                                 "ASoC: Property '%s' index %d could not be read: %d\n",
@@ -3581,7 +3585,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
                 }
         }
 
-        card->num_dapm_routes = num_routes;
+        card->num_dapm_routes += num_routes;
         card->dapm_routes = routes;
 
         return 0;