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mailbox: Fix devm_ioremap_resource error detection code

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devm_ioremap_resource returns an ERR_PTR value, not NULL,
on failure.

The Coccinelle semantic patch used to make this change is
as follows:
@@
expression e,e1;
statement S;
@@

*e = devm_ioremap_resource(...);
if (!e1) S

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
This commit is contained in:
Amitoj Kaur Chawla 2016-05-05 17:50:49 +05:30 committed by Jassi Brar
parent dd28216528
commit c430cf376f
1 changed files with 2 additions and 2 deletions
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4
drivers/mailbox/mailbox-sti.c
View File

@ -430,8 +430,8 @@ static int sti_mbox_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mdev->base = devm_ioremap_resource(&pdev->dev, res);
if (!mdev->base)
return -ENOMEM;
if (IS_ERR(mdev->base))
return PTR_ERR(mdev->base);
ret = of_property_read_string(np, "mbox-name", &mdev->name);
if (ret)