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spi: atmel: fix return value check in atmel_spi_probe() 

In case of error, the function devm_ioremap_resource() 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: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Wei Yongjun 2013-10-21 11:12:02 +08:00 committed by Mark Brown
parent 31407478a7
commit 543c954d68
1 changed files with 3 additions and 1 deletions
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4
drivers/spi/spi-atmel.c
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@ -1547,8 +1547,10 @@ static int atmel_spi_probe(struct platform_device *pdev)
as->pdev = pdev;
as->regs = devm_ioremap_resource(&pdev->dev, regs);
if (!as->regs)
if (IS_ERR(as->regs)) {
ret = PTR_ERR(as->regs);
goto out_free_buffer;
}
as->phybase = regs->start;
as->irq = irq;
as->clk = clk;