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iommu/rockchip: Don't feed NULL res pointers to devres 

If we do, devres prints a "invalid resource" string in the error
loglevel.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
hifive-unleashed-5.1
Tomeu Vizoso 2016-03-21 12:00:23 +01:00 committed by Joerg Roedel
parent 9735a22799
commit 8d7f2d84ed
1 changed files with 2 additions and 0 deletions
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2
drivers/iommu/rockchip-iommu.c
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@ -1049,6 +1049,8 @@ static int rk_iommu_probe(struct platform_device *pdev)
for (i = 0; i < pdev->num_resources; i++) {
res = platform_get_resource(pdev, IORESOURCE_MEM, i);
if (!res)
continue;
iommu->bases[i] = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(iommu->bases[i]))
continue;