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rt61pci: fix NULL pointer dereference in config_lna_gain
authorStanislaw Gruszka <sgruszka@redhat.com>
Fri, 3 Aug 2012 10:49:14 +0000 (12:49 +0200)
committerJohn W. Linville <linville@tuxdriver.com>
Mon, 6 Aug 2012 18:29:58 +0000 (14:29 -0400)
We can not pass NULL libconf->conf->channel to rt61pci_config() as it
is dereferenced unconditionally in rt61pci_config_lna_gain() subroutine.

Resolves:
https://bugzilla.kernel.org/show_bug.cgi?id=44361

Cc: stable@vger.kernel.org
Reported-and-tested-by: <dolohow@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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