diff options
Diffstat (limited to 'drivers/bus/fsl-mc/fsl-mc-bus.c')
| -rw-r--r-- | drivers/bus/fsl-mc/fsl-mc-bus.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c index d1f3d327ddd1..a8be8cf246fb 100644 --- a/drivers/bus/fsl-mc/fsl-mc-bus.c +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c @@ -153,7 +153,8 @@ static int fsl_mc_dma_configure(struct device *dev) else ret = acpi_dma_configure_id(dev, DEV_DMA_COHERENT, &input_id); - if (!ret && !mc_drv->driver_managed_dma) { + /* @mc_drv may not be valid when we're called from the IOMMU layer */ + if (!ret && dev->driver && !mc_drv->driver_managed_dma) { ret = iommu_device_use_default_domain(dev); if (ret) arch_teardown_dma_ops(dev); |