disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/media/rc/imon.c
..
..
@@ -646,15 +646,14 @@
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 		pr_err_ratelimited("error submitting urb(%d)\n", retval);
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 	} else {
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 		/* Wait for transmission to complete (or abort) */
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-		mutex_unlock(&ictx->lock);
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 		retval = wait_for_completion_interruptible(
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 				&ictx->tx.finished);
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 		if (retval) {
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 			usb_kill_urb(ictx->tx_urb);
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 			pr_err_ratelimited("task interrupted\n");
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 		}
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-		mutex_lock(&ictx->lock);
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655
 
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+		ictx->tx.busy = false;
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 		retval = ictx->tx.status;
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 		if (retval)
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 			pr_err_ratelimited("packet tx failed (%d)\n", retval);
..
..
@@ -958,7 +957,8 @@
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 	if (ictx->disconnected)
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 		return -ENODEV;
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-	mutex_lock(&ictx->lock);
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+	if (mutex_lock_interruptible(&ictx->lock))
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+		return -ERESTARTSYS;
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 	if (!ictx->dev_present_intf0) {
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 		pr_err_ratelimited("no iMON device present\n");