diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2013-11-05 17:06:57 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-11-05 17:40:19 +1100 |
| commit | 85f359682ec1246846bcaa84936cffaa672c53c6 (patch) | |
| tree | 7727f050b5bb5b3bfe2f12780522f6d737b89e52 /drivers | |
| parent | c253db6aaee153b715991e767a4e4a537d7e38b1 (diff) | |
iommu/arm-smmu: handle pgtable_page_ctor() fail
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/arm-smmu.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 181c9ba929cd..2349d6272aef 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1212,7 +1212,10 @@ static int arm_smmu_alloc_init_pte(struct arm_smmu_device *smmu, pmd_t *pmd, arm_smmu_flush_pgtable(smmu, page_address(table), ARM_SMMU_PTE_HWTABLE_SIZE); - pgtable_page_ctor(table); + if (!pgtable_page_ctor(table)) { + __free_page(table); + return -ENOMEM; + } pmd_populate(NULL, pmd, table); arm_smmu_flush_pgtable(smmu, pmd, sizeof(*pmd)); } |