Re: [PATCH AUTOSEL 4.14 35/43] tty: fix NULL pointer issue when tty_port ops is not set

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Hi Sasha,

On Mon, Apr 22, 2019 at 03:47:19PM -0400, Sasha Levin wrote:
> From: Fabien Dessenne <fabien.dessenne@xxxxxx>
> 
> [ Upstream commit f4e68d58cf2b20a581759bbc7228052534652673 ]
> 
> Unlike 'client_ops' which is initialized to 'default_client_ops', the
> port operations 'ops' may be left to NULL.
> Check the 'ops' value before checking the 'ops->x' value.
> 
> Signed-off-by: Fabien Dessenne <fabien.dessenne@xxxxxx>
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Sasha Levin (Microsoft) <sashal@xxxxxxxxxx>

Despite the commit message, this one doesn't really fix anything and has
been reverted in Greg's tree (not sure why hasn't shown up in linux-next
yet).

Johan



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