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spi: fix return value check in dspi_probe()

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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>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Wei Yongjun 2013-09-11 19:15:08 +08:00 committed by Mark Brown
parent 5787392598
commit 272bfbd54f
1 changed files with 2 additions and 8 deletions
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10
drivers/spi/spi-fsl-dspi.c
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@ -476,15 +476,9 @@ static int dspi_probe(struct platform_device *pdev)
master->bus_num = bus_num;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "can't get platform resource\n");
ret = -EINVAL;
goto out_master_put;
}
dspi->base = devm_ioremap_resource(&pdev->dev, res);
if (!dspi->base) {
ret = -EINVAL;
if (IS_ERR(dspi->base)) {
ret = PTR_ERR(dspi->base);
goto out_master_put;
}