There's no need to initialise irq-flags variables before saving the
interrupt state.

Drop the redundant initialisations from drivers that got this wrong.

Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/tty/serial/amba-pl011.c    |  2 +-
 drivers/tty/serial/imx.c           |  2 +-
 drivers/tty/serial/omap-serial.c   | 10 +++++-----
 drivers/tty/serial/serial_core.c   |  4 ++--
 drivers/tty/serial/st-asc.c        |  2 +-
 drivers/tty/serial/stm32-usart.c   |  2 +-
 drivers/tty/serial/xilinx_uartps.c |  8 ++++----
 7 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 78682c12156a..e14f3378b8a0 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c

@@ -1062,7 +1062,7 @@ static void pl011_dma_rx_poll(struct timer_list *t)
 	struct tty_port *port = &uap->port.state->port;
 	struct pl011_dmarx_data *dmarx = &uap->dmarx;
 	struct dma_chan *rxchan = uap->dmarx.chan;
-	unsigned long flags = 0;
+	unsigned long flags;
 	unsigned int dmataken = 0;
 	unsigned int size = 0;
 	struct pl011_sgbuf *sgbuf;

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 7d5a8dfa3e91..4b838601cdce 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c

@@ -1975,8 +1975,8 @@ imx_uart_console_write(struct console *co, const char *s, unsigned int count)
 {
 	struct imx_port *sport = imx_uart_ports[co->index];
 	struct imx_port_ucrs old_ucr;
+	unsigned long flags;
 	unsigned int ucr1;
-	unsigned long flags = 0;
 	int locked = 1;
 
 	if (sport->port.sysrq)