Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Wed,  7 Apr 2021 22:57:22 +0530 you wrote:
> Multiple ttys try to claim the same the minor number causing a double
> unregistration of the same device. The first unregistration succeeds
> but the next one results in a null-ptr-deref.
> 
> The get_free_serial_index() function returns an available minor number
> but doesn't assign it immediately. The assignment is done by the caller
> later. But before this assignment, calls to get_free_serial_index()
> would return the same minor number.
> 
> [...]

Here is the summary with links:
  - [v2] net: hso: fix null-ptr-deref during tty device unregistration
    https://git.kernel.org/netdev/net/c/8a12f8836145

You are awesome, thank you!
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