serial: imx: remove null check of sport in suspend/resume function
platform_get_drvdata always retrun a valid value after probe succeed.
It also fixed smatch warnings:
drivers/tty/serial/imx.c:1376 serial_imx_suspend() warn: variable dereferenced before check 'sport' (see line 1372)
drivers/tty/serial/imx.c:1392 serial_imx_resume() warn: variable dereferenced before check 'sport' (see line 1388)
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 49f664f..efeb8be 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1373,8 +1373,7 @@
val |= UCR3_AWAKEN;
writel(val, sport->port.membase + UCR3);
- if (sport)
- uart_suspend_port(&imx_reg, &sport->port);
+ uart_suspend_port(&imx_reg, &sport->port);
return 0;
}
@@ -1389,8 +1388,7 @@
val &= ~UCR3_AWAKEN;
writel(val, sport->port.membase + UCR3);
- if (sport)
- uart_resume_port(&imx_reg, &sport->port);
+ uart_resume_port(&imx_reg, &sport->port);
return 0;
}