NFC: nfcmrvl_uart: add missing tty-device sanity check

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commit 15e0c59f15 upstream.

Make sure to check the tty-device pointer before trying to access the
parent device to avoid dereferencing a NULL-pointer when the tty is one
end of a Unix98 pty.

Fixes: e097dc624f ("NFC: nfcmrvl: add UART driver")
Cc: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Johan Hovold 2017-03-30 12:15:36 +02:00 • committed by Greg Kroah-Hartman

parent f73de3f991

commit 7de6ff402d

1 changed files with 4 additions and 4 deletions

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drivers/nfc/nfcmrvl/uart.c

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