From: Richard Zhao <richard.zhao@freescale.com>
To: linux-serial@vger.kernel.org
Cc: alan@linux.intel.com, gregkh@linuxfoundation.org,
shawn.guo@linaro.org, kernel@pengutronix.de,
Richard Zhao <richard.zhao@freescale.com>
Subject: [PATCH 2/2] serial: imx: remove null check of sport in suspend/resume function
Date: Tue, 18 Sep 2012 16:14:59 +0800 [thread overview]
Message-ID: <1347956099-15257-2-git-send-email-richard.zhao@freescale.com> (raw)
In-Reply-To: <1347956099-15257-1-git-send-email-richard.zhao@freescale.com>
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>
---
drivers/tty/serial/imx.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
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 @@ static int serial_imx_suspend(struct platform_device *dev, pm_message_t state)
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 @@ static int serial_imx_resume(struct platform_device *dev)
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;
}
--
1.7.9.5
next prev parent reply other threads:[~2012-09-18 8:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-18 8:14 [PATCH 1/2] serial: imx: set sport as drvdata, like it's used elsewhere Richard Zhao
2012-09-18 8:14 ` Richard Zhao [this message]
2012-09-19 3:37 ` [PATCH 2/2] serial: imx: remove null check of sport in suspend/resume function Shawn Guo
2012-09-19 3:36 ` [PATCH 1/2] serial: imx: set sport as drvdata, like it's used elsewhere Shawn Guo
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