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can: ti_hecc: fix return value check in ti_hecc_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().

Fixes: dabf54dd1c ("can: ti_hecc: Convert TI HECC driver to DT only driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Wei Yongjun 2017-04-25 06:44:05 +00:00 committed by Marc Kleine-Budde
parent 5e64ebc1c2
commit b655f0e96d
1 changed files with 6 additions and 6 deletions
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12
drivers/net/can/ti_hecc.c
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@ -898,9 +898,9 @@ static int ti_hecc_probe(struct platform_device *pdev)
}
priv->base = devm_ioremap_resource(&pdev->dev, res);
if (!priv->base) {
if (IS_ERR(priv->base)) {
dev_err(&pdev->dev, "hecc ioremap failed\n");
return -ENOMEM;
return PTR_ERR(priv->base);
}
/* handle hecc-ram memory */
@ -911,9 +911,9 @@ static int ti_hecc_probe(struct platform_device *pdev)
}
priv->hecc_ram = devm_ioremap_resource(&pdev->dev, res);
if (!priv->hecc_ram) {
if (IS_ERR(priv->hecc_ram)) {
dev_err(&pdev->dev, "hecc-ram ioremap failed\n");
return -ENOMEM;
return PTR_ERR(priv->hecc_ram);
}
/* handle mbx memory */
@ -924,9 +924,9 @@ static int ti_hecc_probe(struct platform_device *pdev)
}
priv->mbx = devm_ioremap_resource(&pdev->dev, res);
if (!priv->mbx) {
if (IS_ERR(priv->mbx)) {
dev_err(&pdev->dev, "mbx ioremap failed\n");
return -ENOMEM;
return PTR_ERR(priv->mbx);
}
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);