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| author | Joerg Roedel <jroedel@suse.de> | 2020-03-26 16:08:31 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-03-27 11:14:51 +0100 |
| commit | 72acd9df18f12420001f901493c54b7364f34d60 (patch) | |
| tree | df733bf8cdb5925e99ef528f615ec65c770d5d70 /drivers/iommu/iommu.c | |
| parent | 045a70426067d6a22e3e5745b55efc18fa75aabf (diff) | |
| download | linux-stable-72acd9df18f12420001f901493c54b7364f34d60.tar.gz linux-stable-72acd9df18f12420001f901493c54b7364f34d60.tar.bz2 linux-stable-72acd9df18f12420001f901493c54b7364f34d60.zip | |
iommu: Move iommu_fwspec to struct dev_iommu
Move the iommu_fwspec pointer in struct device into struct dev_iommu.
This is a step in the effort to reduce the iommu related pointers in
struct device to one.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Will Deacon <will@kernel.org> # arm-smmu
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200326150841.10083-7-joro@8bytes.org
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 15d64a175d92..2b471419e26c 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -2405,6 +2405,9 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, if (fwspec) return ops == fwspec->ops ? 0 : -EINVAL; + if (!dev_iommu_get(dev)) + return -ENOMEM; + /* Preallocate for the overwhelmingly common case of 1 ID */ fwspec = kzalloc(struct_size(fwspec, ids, 1), GFP_KERNEL); if (!fwspec) |