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Message-ID: <1446596450-20918-7-git-send-email-soren.brinkmann@xilinx.com> Date: Tue, 3 Nov 2015 16:20:47 -0800 From: Soren Brinkmann <soren.brinkmann@...inx.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jslaby@...e.com> CC: Michal Simek <michal.simek@...inx.com>, <linux-serial@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, "Soren Brinkmann" <soren.brinkmann@...inx.com> Subject: [PATCH 6/9] tty: xuartps: Keep lock for whole ISR The RX path in the interrupt handler released a lock unnecessarily. Signed-off-by: Soren Brinkmann <soren.brinkmann@...inx.com> --- drivers/tty/serial/xilinx_uartps.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index b189e600d4ab..544ea13e2e93 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -265,9 +265,7 @@ static irqreturn_t cdns_uart_isr(int irq, void *dev_id) uart_insert_char(port, isrstatus, CDNS_UART_IXR_OVERRUN, data, status); } - spin_unlock(&port->lock); tty_flip_buffer_push(&port->state->port); - spin_lock(&port->lock); } /* Dispatch an appropriate handler */ -- 2.6.2.3.ga463a5b -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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