Re: [net-next PATCH v5 4/5] net: ethernet: stmicro: stmmac: generate stmmac dma conf before open

[Christian Marangi]

On Wed, Jun 14, 2023 at 01:48:40PM +0000, Jose Abreu wrote:
> From: Christian Marangi <ansuelsmth@xxxxxxxxx>
> Date: Wed, Jun 14, 2023 at 03:16:08
> 
> > I'm not following the meaning of leak here. If it's intended as a memory
> > leak then dma_conf is correctly freed in the 2 user of __stmmac_open.
> > 
> > stmmac_init_phy also doesn't seems to use dma_conf. Am I missing
> > something here?
> > 
> 
> Sorry, I should have been clearer: It's not leaking the dma_conf per-se but
> the contents of it: The DMA descriptors. Since the memcpy() is only done after
> init_phy(); if init_phy() fails, then stmmac will never free up the DMA descriptors.
> 
> Does it make sense?
> 

Thanks for the clarification! Sent a follow-up patch that should fix the
possible leak. Would be good if you can also test it for a Tested-by
tag.

-- 
	Ansuel