[PATCH] alsa-card: skip eld initialization if hctl_handle is NULL.

[maarten.lankhorst@xxxxxxxxxxxxx (Maarten Lankhorst)]

Due to a misconfiguration on my side my hdmi card didn't load with
snd-hda-codec-hdmi but through the fallback mechanism. Pulseaudio
would crash during early because hctl_handle was null, so skip
init_eld_ctls when hctl_handle is null to prevent a crash.

Thanks to David Henningsson for helping me find the underlying issue.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
---
diff --git a/src/modules/alsa/module-alsa-card.c b/src/modules/alsa/module-alsa-card.c
index 3b96cea..2529c0d 100644
--- a/src/modules/alsa/module-alsa-card.c
+++ b/src/modules/alsa/module-alsa-card.c
@@ -437,6 +437,9 @@ static void init_eld_ctls(struct userdata *u) {
     void *state;
     pa_device_port *port;
 
+    if (!u->hctl_handle)
+        return;
+
     PA_HASHMAP_FOREACH(port, u->card->ports, state) {
         pa_alsa_port_data *data = PA_DEVICE_PORT_DATA(port);
         snd_hctl_elem_t* hctl_elem;