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ath9k: use GFP_ATOMIC under spinlock

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This is called with spinlocks held so we have to use GFP_ATOMIC.  It's
the sc_pcu_lock in ath9k_stop() that's the issue.  The call tree looks
like this:

ath9k_stop()
ath_prepare_reset()
ath_stoprecv()
ath_flushrecv()
ath_rx_tasklet()
ath9k_dfs_process_phyerr()
pd->add_pulse() => dpd_add_pulse()
channel_detector_get()
channel_detector_create()
pri_detector_init()

channel_detector_create() uses GFP_ATOMIC as well.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Acked-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Dan Carpenter 2013-04-16 10:51:28 +03:00 committed by John W. Linville
parent ca21cfde84
commit 703a4e5521
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
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@ -406,7 +406,8 @@ static struct pri_sequence *pri_detector_add_pulse(struct pri_detector *de,
struct pri_detector *pri_detector_init(const struct radar_detector_specs *rs)
{
struct pri_detector *de;
de = kzalloc(sizeof(*de), GFP_KERNEL);
de = kzalloc(sizeof(*de), GFP_ATOMIC);
if (de == NULL)
return NULL;
de->exit = pri_detector_exit;