Re: [PATCH] dmaengine: at_hdmac: fix memory leak in at_dma_xlate()

On 27-11-18, 17:06, Richard Genoud wrote:

The leak was found when opening/closing a serial port a great number of time, increasing kmalloc-32 in slabinfo.

Each time the port was opened, dma_request_slave_channel() was called. Then, in at_dma_xlate(), atslave was allocated with devm_kzalloc() and never freed. (Well, it was free at module unload, but that's not what we want). So, here, kzalloc is more suited for the job since it has to be freed in atc_free_chan_resources().

Applied, thanks