diff options
| author | Dmitry Osipenko <digetx@gmail.com> | 2018-12-12 23:38:45 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2019-01-16 15:54:09 +0300 |
| commit | ae95c46dbed56af0e1d106865801bf06e1762c2c (patch) | |
| tree | 183b152c7e165c4ac7aa858436414d4da9f6fecc /drivers/iommu/tegra-gart.c | |
| parent | 4f821c1002cb236f14d0b4572b0b98fe800178a8 (diff) | |
| download | linux-ae95c46dbed56af0e1d106865801bf06e1762c2c.tar.xz | |
iommu/tegra: gart: Clean up driver probe errors handling
Properly clean up allocated resources on the drivers probe failure and
remove unneeded checks.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/tegra-gart.c')
| -rw-r--r-- | drivers/iommu/tegra-gart.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index ff75cf60117b..1cd470b2beea 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -411,9 +411,6 @@ static int tegra_gart_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; int ret; - if (gart_handle) - return -EIO; - BUILD_BUG_ON(PAGE_SHIFT != GART_PAGE_SHIFT); /* the GART memory aperture is required */ @@ -448,8 +445,7 @@ static int tegra_gart_probe(struct platform_device *pdev) ret = iommu_device_register(&gart->iommu); if (ret) { dev_err(dev, "Failed to register IOMMU\n"); - iommu_device_sysfs_remove(&gart->iommu); - return ret; + goto remove_sysfs; } gart->dev = &pdev->dev; @@ -463,7 +459,8 @@ static int tegra_gart_probe(struct platform_device *pdev) gart->savedata = vmalloc(array_size(sizeof(u32), gart->page_count)); if (!gart->savedata) { dev_err(dev, "failed to allocate context save area\n"); - return -ENOMEM; + ret = -ENOMEM; + goto unregister_iommu; } platform_set_drvdata(pdev, gart); @@ -472,6 +469,13 @@ static int tegra_gart_probe(struct platform_device *pdev) gart_handle = gart; return 0; + +unregister_iommu: + iommu_device_unregister(&gart->iommu); +remove_sysfs: + iommu_device_sysfs_remove(&gart->iommu); + + return ret; } static const struct dev_pm_ops tegra_gart_pm_ops = { |