From: Rob Herring (Arm) Date: Wed, 31 Jul 2024 19:12:44 +0000 (-0600) Subject: iommu: Use of_property_present() X-Git-Tag: v6.12-rc1~149^2^5 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=04f4f33c941c221645d2a58b46f4d698b0f5aa39;p=thirdparty%2Fkernel%2Flinux.git iommu: Use of_property_present() Use of_property_present() to test for property presence rather than of_(find|get)_property(). This is part of a larger effort to remove callers of of_find_property() and similar functions. of_find_property() leaks the DT struct property and data pointers which is a problem for dynamically allocated nodes which may be freed. Signed-off-by: Rob Herring (Arm) Reviewed-by: Robin Murphy Link: https://lore.kernel.org/r/20240731191312.1710417-6-robh@kernel.org Signed-off-by: Joerg Roedel --- diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c index e9d2bff4659b7..30be786bff11e 100644 --- a/drivers/iommu/fsl_pamu_domain.c +++ b/drivers/iommu/fsl_pamu_domain.c @@ -416,14 +416,12 @@ static struct iommu_group *fsl_pamu_device_group(struct device *dev) static struct iommu_device *fsl_pamu_probe_device(struct device *dev) { - int len; - /* * uboot must fill the fsl,liodn for platform devices to be supported by * the iommu. */ if (!dev_is_pci(dev) && - !of_get_property(dev->of_node, "fsl,liodn", &len)) + !of_property_present(dev->of_node, "fsl,liodn")) return ERR_PTR(-ENODEV); return &pamu_iommu; diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index 78d61da75257c..e7a6a1611d193 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -214,7 +214,7 @@ void of_iommu_get_resv_regions(struct device *dev, struct list_head *list) * that represent reservations in the IOVA space, which are regions that should * not be mapped. */ - if (of_find_property(it.node, "reg", NULL)) { + if (of_property_present(it.node, "reg")) { err = of_address_to_resource(it.node, 0, &phys); if (err < 0) { dev_err(dev, "failed to parse memory region %pOF: %d\n",