tree 375bc551eb885bfcf90309b9eef6b961f1595c03
parent a1783a7b0846fc6414483e6caf646db72023fffd
author Michal Nazarewicz <mina86@mina86.com> 1385744806 +0100
committer John W. Linville <linville@tuxdriver.com> 1386007911 -0500

net: wireless: ath9k: avoid possible NULL pointer dereference

Code in ath9k_hw_set_clockrate function indicates that ah->curchan
(and thus chan local variable) may be NULL.  If that is indeed the
case, IS_CHAN_HT40(chan) check has to be performed only in branch
where chan is not NULL.  Moving the code under already existing
if condition fixes this issue.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>