3.7-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wei Yongjun <yongjun_...@trendmicro.com.cn>
commit a6dd114e16cbc4410049a90a8a67b967333d108d upstream.
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_...@trendmicro.com.cn>
Acked-by: Tony Prisk <li...@prisktech.co.nz>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/tty/serial/vt8500_serial.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c
@@ -604,7 +604,7 @@ static int __devinit vt8500_serial_probe
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 */
--
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