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From 002d105f8a78b19624fc5e3eccbb77af8b1a3a77 Mon Sep 17 00:00:00 2001
From: Kiran K <kiran.k@intel.com>
Date: Tue, 5 Oct 2021 20:15:56 +0530
Subject: [PATCH] Bluetooth: Read codec capabilities only if supported
Read codec capabilities only if HCI_READ_LOCAL_CODEC_CAPABILITIES
command is supported. If capablities are not supported, then
cache codec data without caps.
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
For: https://bugs.archlinux.org/task/73454
---
net/bluetooth/hci_codec.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/net/bluetooth/hci_codec.c b/net/bluetooth/hci_codec.c
index f0421d0edaa377..38201532f58e82 100644
--- a/net/bluetooth/hci_codec.c
+++ b/net/bluetooth/hci_codec.c
@@ -25,9 +25,11 @@ static int hci_codec_list_add(struct list_head *list,
}
entry->transport = sent->transport;
entry->len = len;
- entry->num_caps = rp->num_caps;
- if (rp->num_caps)
+ entry->num_caps = 0;
+ if (rp) {
+ entry->num_caps = rp->num_caps;
memcpy(entry->caps, caps, len);
+ }
list_add(&entry->list, list);
return 0;
@@ -58,6 +60,18 @@ static void hci_read_codec_capabilities(struct hci_dev *hdev, __u8 transport,
__u32 len;
cmd->transport = i;
+
+ /* If Read_Codec_Capabilities command is not supported
+ * then just add codec to the list without caps
+ */
+ if (!(hdev->commands[45] & 0x08)) {
+ hci_dev_lock(hdev);
+ hci_codec_list_add(&hdev->local_codecs, cmd,
+ NULL, NULL, 0);
+ hci_dev_unlock(hdev);
+ continue;
+ }
+
skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_CODEC_CAPS,
sizeof(*cmd), cmd,
HCI_CMD_TIMEOUT);
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