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USB: test for NULL return from platform_get_resource() in ohci_hcd_sm501_drv_remove()

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platform_get_resource() may return null, so although it seems it will never
do so here unless there's a bug elsewhere, it does no harm to be defensive
and test.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jesper Juhl 2008-03-21 22:55:45 +01:00 committed by Greg Kroah-Hartman
parent e04d80b03d
commit 119fc8c9ac
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/host/ohci-sm501.c
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@ -199,7 +199,8 @@ static int ohci_hcd_sm501_drv_remove(struct platform_device *pdev)
usb_put_hcd(hcd);
dma_release_declared_memory(&pdev->dev);
mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
release_mem_region(mem->start, mem->end - mem->start + 1);
if (mem)
release_mem_region(mem->start, mem->end - mem->start + 1);
/* mask interrupts and disable power */