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

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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>
(cherry picked from commit 8d7f2d84ed)

Change-Id: I3849bcaa4ceaea3247a8169b2a123a834011fbc5
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
This commit is contained in:
Tomeu Vizoso
2016-03-21 12:00:23 +01:00
committed by Huang, Tao
parent dc7e965076
commit f5202c54dd
1 changed files with 2 additions and 0 deletions
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2
drivers/iommu/rockchip-iommu.c
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@@ -1141,6 +1141,8 @@ static int rk_iommu_probe(struct platform_device *pdev)
for (i = 0; i < num_res; 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;