From: Dan Carpenter Date: Tue, 16 Apr 2013 07:51:28 +0000 (+0300) Subject: ath9k: use GFP_ATOMIC under spinlock X-Git-Tag: v3.10-rc2~34^2~21^2^2~76 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=703a4e5521dcd6624a8740c5be597c4fc8e4b9bb;p=profile%2Fivi%2Fkernel-x86-ivi.git ath9k: use GFP_ATOMIC under spinlock 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 Tested-by: Zefir Kurtisi Acked-by: Zefir Kurtisi Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c index b3e7cf2..344b5d5 100644 --- a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c +++ b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c @@ -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;