From b655f0e96d4061eac42dea2dccd37a3348d1f3f3 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 25 Apr 2017 06:44:05 +0000 Subject: [PATCH] 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: dabf54dd1c63 ("can: ti_hecc: Convert TI HECC driver to DT only driver") Signed-off-by: Wei Yongjun Signed-off-by: Marc Kleine-Budde --- drivers/net/can/ti_hecc.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index b8aac538275c..4d4941469cfc 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -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);