Re: [PATCH v4] uart: fix race between uart_put_char() and uart_shutdown()
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2018-07-12 15:04:44
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On Wed, Jul 11, 2018 at 10:07:44AM -0600, Tycho Andersen wrote:
+ if (uport) + spin_lock_irqsave(&uport->lock, flags);
That's the same thing as just calling uart_port_lock(), why aren't you doing that? thanks, greg k-h