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omap: mailbox: check iomem resource before dereferencing it

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Add a NULL check for iomem resource in mailbox probe functions.

Signed-off-by: Fernando Guzman Lugo <lugo.fernando@gmail.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
This commit is contained in:
Suman Anna 2013-02-01 20:24:51 -06:00
parent 317ddd256b
commit a41677c6c5
2 changed files with 6 additions and 0 deletions
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3
arch/arm/mach-omap1/mailbox.c
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@ -152,6 +152,9 @@ static int omap1_mbox_probe(struct platform_device *pdev)
list[0]->irq = platform_get_irq_byname(pdev, "dsp");
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem)
return -ENOENT;
mbox_base = ioremap(mem->start, resource_size(mem));
if (!mbox_base)
return -ENOMEM;

3
arch/arm/mach-omap2/mailbox.c
View file

@ -382,6 +382,9 @@ static int omap2_mbox_probe(struct platform_device *pdev)
}
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem)
return -ENOENT;
mbox_base = ioremap(mem->start, resource_size(mem));
if (!mbox_base)
return -ENOMEM;