CRAS: Initialize poll_fd in open_dev

configure_dev is not called in update_max_supported_channels. It will
make aio->poll_fd not be initialized and send wrong msg to the audio
thread when closing a device. Initialize poll_fd in open_dev and fix
this issue.

BUG=b:329545142
TEST=Plug audio device and check whether there is msg_id:10 in the audio
thread log.

Change-Id: Iace20b09869001d27a26d7c9fec605fb46a48bdf
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/adhd/+/5539096
Reviewed-by: Hsinyu Chao <[email protected]>
Tested-by: Yu-Hsuan Hsu <[email protected]>
Commit-Queue: Yu-Hsuan Hsu <[email protected]>
Tested-by: [email protected] <[email protected]>
Reviewed-by: Curtis Malainey <[email protected]>

Author: Yu-Hsuan

cras/src/server/cras_alsa_io.c

@@ -255,6 +255,7 @@ static int open_dev(struct cras_iodev* iodev) {
   struct alsa_io* aio = (struct alsa_io*)iodev;
   const char* pcm_name = NULL;
 
+  aio->common.poll_fd = -1;
   /* For DependentPCM usage in HiFi.conf only.
    * Normally the pcm name should come from the alsa_io device, not from nodes.
    */
@@ -343,7 +344,6 @@ static int configure_dev(struct cras_iodev* iodev) {
   // Initialize device settings.
   init_device_settings(aio);
 
-  aio->common.poll_fd = -1;
   if (iodev->active_node->type == CRAS_NODE_TYPE_HOTWORD) {
     struct pollfd* ufds;
     int count, i;

cras/src/server/cras_alsa_usb_io.c

@@ -117,6 +117,7 @@ static int usb_open_dev(struct cras_iodev* iodev) {
       (struct alsa_common_node*)aio->common.base.active_node;
   const char* pcm_name = anode->pcm_name;
 
+  aio->common.poll_fd = -1;
   audio_peripheral_info(aio->common.vendor_id, aio->common.product_id,
                         CRAS_NODE_TYPE_USB);
 
@@ -178,8 +179,6 @@ static int usb_configure_dev(struct cras_iodev* iodev) {
   // Initialize device settings.
   usb_init_device_settings(aio);
 
-  aio->common.poll_fd = -1;
-
   // Capture starts right away, playback will wait for samples.
   if (aio->common.alsa_stream == SND_PCM_STREAM_CAPTURE) {
     rc = cras_alsa_pcm_start(aio->common.handle);