Commit 2dfbe9af authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Mark Brown

ASoC: zx: spdif: Fix devm_ioremap_resource return value check

Value returned by devm_ioremap_resource() was checked for non-NULL but
devm_ioremap_resource() returns IOMEM_ERR_PTR, not NULL. In case of
error this could lead to dereference of ERR_PTR.
Signed-off-by: default avatarKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Reviewed-by: default avatarJun Nie <jun.nie@linaro.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent a18da49f
......@@ -322,9 +322,9 @@ static int zx_spdif_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
zx_spdif->mapbase = res->start;
zx_spdif->reg_base = devm_ioremap_resource(&pdev->dev, res);
if (!zx_spdif->reg_base) {
if (IS_ERR(zx_spdif->reg_base)) {
dev_err(&pdev->dev, "ioremap failed!\n");
return -EIO;
return PTR_ERR(zx_spdif->reg_base);
}
zx_spdif_dev_init(zx_spdif->reg_base);
......
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