diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/msm_iommu.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c index 50f57624610f..3d9bd2043738 100644 --- a/drivers/iommu/msm_iommu.c +++ b/drivers/iommu/msm_iommu.c @@ -583,7 +583,7 @@ static void print_ctx_regs(void __iomem *base, int ctx) GET_SCTLR(base, ctx), GET_ACTLR(base, ctx)); } -static void insert_iommu_master(struct device *dev, +static int insert_iommu_master(struct device *dev, struct msm_iommu_dev **iommu, struct of_phandle_args *spec) { @@ -592,6 +592,10 @@ static void insert_iommu_master(struct device *dev, if (list_empty(&(*iommu)->ctx_list)) { master = kzalloc(sizeof(*master), GFP_ATOMIC); + if (!master) { + dev_err(dev, "Failed to allocate iommu_master\n"); + return -ENOMEM; + } master->of_node = dev->of_node; list_add(&master->list, &(*iommu)->ctx_list); dev_iommu_priv_set(dev, master); @@ -601,10 +605,11 @@ static void insert_iommu_master(struct device *dev, if (master->mids[sid] == spec->args[0]) { dev_warn(dev, "Stream ID 0x%hx repeated; ignoring\n", sid); - return; + return 0; } master->mids[master->num_mids++] = spec->args[0]; + return 0; } static int qcom_iommu_of_xlate(struct device *dev, @@ -624,7 +629,7 @@ static int qcom_iommu_of_xlate(struct device *dev, goto fail; } - insert_iommu_master(dev, &iommu, spec); + ret = insert_iommu_master(dev, &iommu, spec); fail: spin_unlock_irqrestore(&msm_iommu_lock, flags); |