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Date:   Thu, 12 May 2022 23:40:13 +0000
To:     Horatiu Vultur <>
Subject: Re: [PATCH net-next] net: lan966x: Fix use of pointer after being freed


This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski <>:

On Wed, 11 May 2022 22:40:59 +0200 you wrote:
> The smatch found the following warning:
> drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c:736 lan966x_fdma_reload()
> warn: 'rx_dcbs' was already freed.
> This issue can happen when changing the MTU on one of the ports and once
> the RX buffers are allocated and then the TX buffer allocation fails.
> In that case the RX buffers should not be restore. This fix this issue
> such that the RX buffers will not be restored if the TX buffers failed
> to be allocated.
> [...]

Here is the summary with links:
  - [net-next] net: lan966x: Fix use of pointer after being freed

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