net: wireless: ath9k: avoid possible NULL pointer dereference

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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>

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Michal Nazarewicz 2013-11-29 18:06:46 +01:00 • committed by John W. Linville

parent a1783a7b08

commit beae416b1f

1 changed files with 3 additions and 4 deletions

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drivers/net/wireless/ath/ath9k/hw.c

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