These days the core code will free the fwspec if probe fails, no reason for any driver to call this on a probe failure path. Reviewed-by: Jerry Snitselaar <jsnitsel@xxxxxxxxxx> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> --- drivers/iommu/arm/arm-smmu/arm-smmu.c | 14 +++++--------- drivers/iommu/tegra-smmu.c | 1 - 2 files changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c index d6d1a2a55cc069..854efcb1b84ddf 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c @@ -1348,6 +1348,8 @@ static struct iommu_device *arm_smmu_probe_device(struct device *dev) if (using_legacy_binding) { ret = arm_smmu_register_legacy_master(dev, &smmu); + if (ret) + return ERR_PTR(ret); /* * If dev->iommu_fwspec is initally NULL, arm_smmu_register_legacy_master() @@ -1355,15 +1357,12 @@ static struct iommu_device *arm_smmu_probe_device(struct device *dev) * later use. */ fwspec = dev_iommu_fwspec_get(dev); - if (ret) - goto out_free; } else if (fwspec && fwspec->ops == &arm_smmu_ops) { smmu = arm_smmu_get_by_fwnode(fwspec->iommu_fwnode); } else { return ERR_PTR(-ENODEV); } - ret = -EINVAL; for (i = 0; i < fwspec->num_ids; i++) { u16 sid = FIELD_GET(ARM_SMMU_SMR_ID, fwspec->ids[i]); u16 mask = FIELD_GET(ARM_SMMU_SMR_MASK, fwspec->ids[i]); @@ -1371,20 +1370,19 @@ static struct iommu_device *arm_smmu_probe_device(struct device *dev) if (sid & ~smmu->streamid_mask) { dev_err(dev, "stream ID 0x%x out of range for SMMU (0x%x)\n", sid, smmu->streamid_mask); - goto out_free; + return ERR_PTR(-EINVAL); } if (mask & ~smmu->smr_mask_mask) { dev_err(dev, "SMR mask 0x%x out of range for SMMU (0x%x)\n", mask, smmu->smr_mask_mask); - goto out_free; + return ERR_PTR(-EINVAL); } } - ret = -ENOMEM; cfg = kzalloc(offsetof(struct arm_smmu_master_cfg, smendx[i]), GFP_KERNEL); if (!cfg) - goto out_free; + return ERR_PTR(-ENOMEM); cfg->smmu = smmu; dev_iommu_priv_set(dev, cfg); @@ -1408,8 +1406,6 @@ static struct iommu_device *arm_smmu_probe_device(struct device *dev) out_cfg_free: kfree(cfg); -out_free: - iommu_fwspec_free(dev); return ERR_PTR(ret); } diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 310871728ab4b6..e3101aa2f35689 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -844,7 +844,6 @@ static int tegra_smmu_configure(struct tegra_smmu *smmu, struct device *dev, err = ops->of_xlate(dev, args); if (err < 0) { dev_err(dev, "failed to parse SW group ID: %d\n", err); - iommu_fwspec_free(dev); return err; } -- 2.42.0