[PATCH] alsa: Fix ELD access warning on shutdown

[david.henningsson@xxxxxxxxxxxxx (David Henningsson)]

The hdmi_eld_changed callback is called by alsa-lib at shutdown.
In that case, just exit instead of trying to access something with
already closed handles.

Signed-off-by: David Henningsson <david.henningsson at canonical.com>
---
 src/modules/alsa/module-alsa-card.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/modules/alsa/module-alsa-card.c b/src/modules/alsa/module-alsa-card.c
index 2529c0d..11197a8 100644
--- a/src/modules/alsa/module-alsa-card.c
+++ b/src/modules/alsa/module-alsa-card.c
@@ -409,6 +409,9 @@ static int hdmi_eld_changed(snd_hctl_elem_t *elem, unsigned int mask) {
     pa_hdmi_eld eld;
     bool changed = false;
 
+    if (mask == SND_CTL_EVENT_MASK_REMOVE)
+        return 0;
+
     p = find_port_with_eld_device(u->card->ports, device);
     if (p == NULL) {
         pa_log_error("Invalid device changed in ALSA: %d", device);
-- 
1.7.9.5