From mboxrd@z Thu Jan 1 00:00:00 1970 From: jiada_wang@mentor.com (jiwang) Date: Mon, 13 Apr 2015 15:52:01 +0900 Subject: [PATCH] serial: imx: protect Soft Reset of port with lock In-Reply-To: <20150326220113.GA24630@kroah.com> References: <1426228691-20529-1-git-send-email-jiada_wang@mentor.com> <20150326220113.GA24630@kroah.com> Message-ID: <552B6791.60905@mentor.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Greg On 03/27/2015 07:01 AM, Greg KH wrote: > On Fri, Mar 13, 2015 at 03:38:11PM +0900, Jiada Wang wrote: >> Previously Soft Reset (clear of SRST bit in UCR2 register) >> of UART in startup is not protected by lock, which may have race >> with console_write, as console_write may occur at anytime even >> when UART port is shutdown. >> >> To avoid this race, protect Soft reset of UART port with spin_lock. >> >> Signed-off-by: Jiada Wang >> --- >> drivers/tty/serial/imx.c | 12 ++++++------ >> 1 file changed, 6 insertions(+), 6 deletions(-) > Doesn't apply to my tree :( Can you tell me which tree are you using? so that I can submit another patch based same tree. Thanks, Jiada