[PATCH] test for NULL return from platform_get_resource() inohci_hcd_sm501_drv_remove()

[Jesper Juhl]

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@xxxxxxxxx>
---

 ohci-sm501.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c
index a970701..1ffc272 100644
--- a/drivers/usb/host/ohci-sm501.c
+++ b/drivers/usb/host/ohci-sm501.c
@@ -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 */
 


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