On 22-08-18, 10:40, Huang Shijie wrote: > The following patch introduced an issue. > commit f6206f00d8c5 ("dmaengine: mic_x100_dma: use the new helper to simplify the code") > > This issue is : > > kfree(mic_dma_dev) > ..... > dma_async_device_unregister(mic_dma_dev->device); > > Free the memory, and use it again. > > So use devm_kzalloc to allocate mic_dma_dev to fix it. > > When the Devres try to release the resources, it will call release at the > following order: > > dma_async_device_unregister(mic_dma_dev->device); > ..... > kfree(mic_dma_dev) After fixing the subsystem name, applied thanks -- ~Vinod