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spi: spi-amd: Fix a NULL vs IS_ERR() check in amd_spi_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().

Fixes: bbb336f39e ("spi: spi-amd: Add AMD SPI controller driver support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200429025426.167664-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Wei Yongjun 2020-04-29 02:54:26 +00:00 committed by Mark Brown
parent 68d047cb0a
commit f84b604dba
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 3 deletions
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5
drivers/spi/spi-amd.c
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@ -266,10 +266,9 @@ static int amd_spi_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
amd_spi->io_remap_addr = devm_ioremap_resource(&pdev->dev, res);
if (!amd_spi->io_remap_addr) {
if (IS_ERR(amd_spi->io_remap_addr)) {
err = PTR_ERR(amd_spi->io_remap_addr);
dev_err(dev, "error %d ioremap of SPI registers failed\n", err);
err = -ENOMEM;
goto err_free_master;
}
dev_dbg(dev, "io_remap_address: %p\n", amd_spi->io_remap_addr);