diff options
| author | Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2012-12-02 05:10:44 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-15 19:06:42 -0800 |
| commit | a6dd114e16cbc4410049a90a8a67b967333d108d (patch) | |
| tree | 13c19c17a03671d7188bfbe96243feb0f89a0fcd | |
| parent | 87b8bed2ce9394870a87e4fb2aef6752b2bd837d (diff) | |
tty: serial: vt8500: fix return value check in vt8500_serial_probe()
In case of error, function of_clk_get() returns ERR_PTR()
and never returns NULL. The NULL test in the return value
check should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/vt8500_serial.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c index 8fd181436a6..d5ed9f61300 100644 --- a/drivers/tty/serial/vt8500_serial.c +++ b/drivers/tty/serial/vt8500_serial.c @@ -604,7 +604,7 @@ static int vt8500_serial_probe(struct platform_device *pdev) vt8500_port->uart.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF; vt8500_port->clk = of_clk_get(pdev->dev.of_node, 0); - if (vt8500_port->clk) { + if (!IS_ERR(vt8500_port->clk)) { vt8500_port->uart.uartclk = clk_get_rate(vt8500_port->clk); } else { /* use the default of 24Mhz if not specified and warn */ |