tty: amiserial: fix TIOCSSERIAL permission check

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Changing the port closing_wait parameter is a privileged operation.

Add the missing check to TIOCSSERIAL so that -EPERM is returned in case
an unprivileged user tries to change the closing-wait setting.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210407102334.32361-9-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Johan Hovold 2021-04-07 12:23:26 +02:00 • committed by Greg Kroah-Hartman

parent d38be70245

commit 1d31a831cc

1 changed files with 1 additions and 0 deletions

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drivers/tty/amiserial.c

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