From mboxrd@z Thu Jan 1 00:00:00 1970 From: Douglas Anderson Subject: [PATCH v2 3/5] serial: qcom_geni_serial: Process sysrq at port unlock time Date: Tue, 30 Oct 2018 15:11:05 -0700 Message-ID: <20181030221107.79758-4-dianders@chromium.org> References: <20181030221107.79758-1-dianders@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20181030221107.79758-1-dianders@chromium.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Greg Kroah-Hartman , Jiri Slaby Cc: dan.carpenter@oracle.com, vigneshr@ti.com, linux-aspeed@lists.ozlabs.org, andrew@aj.id.au, linux-arm-msm@vger.kernel.org, Douglas Anderson , tony@atomide.com, joel@jms.id.au, linux-serial@vger.kernel.org, andriy.shevchenko@linux.intel.com, linux-arm-kernel@lists.infradead.org, jk@ozlabs.org List-Id: linux-serial@vger.kernel.org Let's take advantage of the new ("serial: core: Allow processing sysrq at port unlock time") to handle sysrqs more cleanly. Signed-off-by: Douglas Anderson --- drivers/tty/serial/qcom_geni_serial.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index b83e3554bced..29ddc1fc65f8 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -499,9 +499,7 @@ static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop) continue; } - spin_unlock(&uport->lock); - sysrq = uart_handle_sysrq_char(uport, buf[c]); - spin_lock(&uport->lock); + sysrq = uart_prepare_sysrq_char(uport, buf[c]); if (!sysrq) tty_insert_flip_char(tport, buf[c], TTY_NORMAL); @@ -811,7 +809,8 @@ static irqreturn_t qcom_geni_serial_isr(int isr, void *dev) qcom_geni_serial_handle_rx(uport, drop_rx); out_unlock: - spin_unlock_irqrestore(&uport->lock, flags); + uart_unlock_and_check_sysrq(uport, flags); + return IRQ_HANDLED; } -- 2.19.1.568.g152ad8e336-goog