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Commit a41677c6 authored by Suman Anna's avatar Suman Anna
Browse files

omap: mailbox: check iomem resource before dereferencing it 



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

Signed-off-by: default avatarFernando Guzman Lugo <lugo.fernando@gmail.com>
Signed-off-by: default avatarSuman Anna <s-anna@ti.com>
parent 317ddd25

arch/arm/mach-omap1/mailbox.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

arch/arm/mach-omap2/mailbox.c

+3 −0
Original line number Diff line number Diff line
@@ -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;