From 543c954d6807ad0682c37846b7b9c423cd941415 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 21 Oct 2013 11:12:02 +0800 Subject: [PATCH] spi: atmel: fix return value check in atmel_spi_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(). Signed-off-by: Wei Yongjun Acked-by: Nicolas Ferre Signed-off-by: Mark Brown --- drivers/spi/spi-atmel.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 118a938776bd..273db0beb2b8 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -1547,8 +1547,10 @@ static int atmel_spi_probe(struct platform_device *pdev) as->pdev = pdev; as->regs = devm_ioremap_resource(&pdev->dev, regs); - if (!as->regs) + if (IS_ERR(as->regs)) { + ret = PTR_ERR(as->regs); goto out_free_buffer; + } as->phybase = regs->start; as->irq = irq; as->clk = clk;