[PW_SID:1031732] [v1] Bluetooth: hci_sync: Fix not clearing cmd_sync_work_list on power off

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: CI
+
+on: [pull_request]
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    name: CI for Pull Request
+    steps:
+    - name: Checkout the source code
+      uses: actions/checkout@v3
+      with:
+        path: src/src
+
+    - name: CI
+      uses: tedd-an/bzcafe@main
+      with:
+        task: ci
+        base_folder: src
+        space: kernel
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        email_token: ${{ secrets.EMAIL_TOKEN }}
+        patchwork_token: ${{ secrets.PATCHWORK_TOKEN }}
+        patchwork_user: ${{ secrets.PATCHWORK_USER }}
+

.github/workflows/sync.yml

@@ -0,0 +1,43 @@
+name: Sync
+
+on:
+  schedule:
+  - cron: "*/30 * * * *"
+
+jobs:
+  sync_repo:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        ref: master
+
+    - name: Sync Repo
+      uses: tedd-an/bzcafe@main
+      with:
+        task: sync
+        upstream_repo: 'https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git'
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Cleanup PR
+      uses: tedd-an/bzcafe@main
+      with:
+        task: cleanup
+        github_token: ${{ secrets.ACTION_TOKEN }}
+
+  sync_patchwork:
+    needs: sync_repo
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Sync Patchwork
+      uses: tedd-an/bzcafe@main
+      with:
+        task: patchwork
+        space: kernel
+        github_token: ${{ secrets.ACTION_TOKEN }}
+        email_token: ${{ secrets.EMAIL_TOKEN }}
+        patchwork_token: ${{ secrets.PATCHWORK_TOKEN }}
+        patchwork_user: ${{ secrets.PATCHWORK_USER }}
+

net/bluetooth/hci_sync.c

@@ -648,16 +648,22 @@ static void _hci_cmd_sync_cancel_entry(struct hci_dev *hdev,
 	kfree(entry);
 }
 
-void hci_cmd_sync_clear(struct hci_dev *hdev)
+/* Clear remaining entries in cmd_sync_work_list */
+static void hci_cmd_sync_list_clear(struct hci_dev *hdev)
 {
 	struct hci_cmd_sync_work_entry *entry, *tmp;
 
+	list_for_each_entry_safe(entry, tmp, &hdev->cmd_sync_work_list, list)
+		_hci_cmd_sync_cancel_entry(hdev, entry, -ECANCELED);
+}
+
+void hci_cmd_sync_clear(struct hci_dev *hdev)
+{
 	cancel_work_sync(&hdev->cmd_sync_work);
 	cancel_work_sync(&hdev->reenable_adv_work);
 
 	mutex_lock(&hdev->cmd_sync_work_lock);
-	list_for_each_entry_safe(entry, tmp, &hdev->cmd_sync_work_list, list)
-		_hci_cmd_sync_cancel_entry(hdev, entry, -ECANCELED);
+	hci_cmd_sync_list_clear(hdev);
 	mutex_unlock(&hdev->cmd_sync_work_lock);
 }
 
@@ -678,6 +684,7 @@ EXPORT_SYMBOL(hci_cmd_sync_cancel);
  *
  * - Set result and mark status to HCI_REQ_CANCELED
  * - Wakeup command sync thread
+ * - Clear cmd_sync_work_list if the interface is down
  */
 void hci_cmd_sync_cancel_sync(struct hci_dev *hdev, int err)
 {
@@ -692,6 +699,9 @@ void hci_cmd_sync_cancel_sync(struct hci_dev *hdev, int err)
 
 		wake_up_interruptible(&hdev->req_wait_q);
 	}
+
+	if (err == EHOSTDOWN || err == -EHOSTDOWN)
+		hci_cmd_sync_list_clear(hdev);
 }
 EXPORT_SYMBOL(hci_cmd_sync_cancel_sync);
 
@@ -5260,14 +5270,14 @@ int hci_dev_close_sync(struct hci_dev *hdev)
 		disable_delayed_work(&hdev->power_off);
 		disable_delayed_work(&hdev->ncmd_timer);
 		disable_delayed_work(&hdev->le_scan_disable);
+		hci_cmd_sync_cancel_sync(hdev, ENODEV);
 	} else {
 		cancel_delayed_work(&hdev->power_off);
 		cancel_delayed_work(&hdev->ncmd_timer);
 		cancel_delayed_work(&hdev->le_scan_disable);
+		hci_cmd_sync_cancel_sync(hdev, EHOSTDOWN);
 	}
 
-	hci_cmd_sync_cancel_sync(hdev, ENODEV);
-
 	cancel_interleave_scan(hdev);
 
 	if (hdev->adv_instance_timeout) {