linux-kernel - Re: [PATCH] net-sysfs: add check for netdevice being present to speed

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Message-Id: <164518261051.25032.3217186042817184528.git-patchwork-notify@kernel.org>
Date:   Fri, 18 Feb 2022 11:10:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Suresh Kumar <surkumar@...hat.com>
Cc:     davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, suresh2514@...il.com
Subject: Re: [PATCH] net-sysfs: add check for netdevice being present to
 speed_show

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Thu, 17 Feb 2022 07:25:18 +0530 you wrote:
> From: suresh kumar <suresh2514@...il.com>
> 
> When bringing down the netdevice or system shutdown, a panic can be
> triggered while accessing the sysfs path because the device is already
> removed.
> 
>     [  755.549084] mlx5_core 0000:12:00.1: Shutdown was called
>     [  756.404455] mlx5_core 0000:12:00.0: Shutdown was called
>     ...
>     [  757.937260] BUG: unable to handle kernel NULL pointer dereference at           (null)
>     [  758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280
> 
> [...]

Here is the summary with links:
  - net-sysfs: add check for netdevice being present to speed_show
    https://git.kernel.org/netdev/net/c/4224cfd7fb65

You are awesome, thank you!
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