devm_kzalloc can fail. Hence check the pointer to avoid NULL pointer
dereferencing.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
GFP_KERNEL);
dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
GFP_KERNEL);
+ if (!dev->dma_parms)
+ goto error;
+
dma_set_max_seg_size(dev, 0xffffffffu);
dev->archdata.mapping = mapping;
return 0;
dma_set_max_seg_size(dev, 0xffffffffu);
dev->archdata.mapping = mapping;
return 0;
+error:
+ arm_iommu_release_mapping(mapping);
+ return -ENOMEM;
subdrv_dev->dma_parms = devm_kzalloc(subdrv_dev,
sizeof(*subdrv_dev->dma_parms),
GFP_KERNEL);
subdrv_dev->dma_parms = devm_kzalloc(subdrv_dev,
sizeof(*subdrv_dev->dma_parms),
GFP_KERNEL);
+ if (!subdrv_dev->dma_parms)
+ return -ENOMEM;
+
dma_set_max_seg_size(subdrv_dev, 0xffffffffu);
ret = arm_iommu_attach_device(subdrv_dev, dev->archdata.mapping);
dma_set_max_seg_size(subdrv_dev, 0xffffffffu);
ret = arm_iommu_attach_device(subdrv_dev, dev->archdata.mapping);