tree c35d67ceb9594d9de35eab88ac011aacc796fd1d
parent e5733321d5a94cc9a202ea85c4aabe09571217e6
author Alexey Khoroshilov <khoroshilov@ispras.ru> 1376686094 +0300
committer David S. Miller <davem@davemloft.net> 1377030448 -0700

via-ircc: don't return zero if via_ircc_open() failed

If via_ircc_open() fails, data structures of the driver left uninitialized,
but probe (via_init_one()) returns zero. That can lead to null pointer dereference
in via_remove_one(), since it does not check drvdata for NULL.

The patch implements proper error code propagation.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>