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authorSujith Manoharan <c_manoha@qca.qualcomm.com>2014-10-07 10:14:37 +0530
committerJohn W. Linville <linville@tuxdriver.com>2014-10-07 14:48:37 -0400
commitb18111d911980af52bead74ee45250cc96ad5108 (patch)
tree619e25c74f1b99f36f818fe3e3129be507d1b1ab /drivers/net/wireless
parentath: Fix smatch warning (diff)
downloadlinux-dev-b18111d911980af52bead74ee45250cc96ad5108.tar.xz
linux-dev-b18111d911980af52bead74ee45250cc96ad5108.zip
ath9k: Fix crash in MCC mode
When a channel context is removed, the hw_queue_base is set to -1, this will result in a panic because ath9k_chanctx_stop_queues() can be called on an interface that is not assigned to any context yet - for example, when trying to scan. Fix this issue by setting the hw_queue_base to zero when a channel context is removed. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 205162449b72..6f6a974f7fdb 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2332,7 +2332,7 @@ static void ath9k_remove_chanctx(struct ieee80211_hw *hw,
conf->def.chan->center_freq);
ctx->assigned = false;
- ctx->hw_queue_base = -1;
+ ctx->hw_queue_base = 0;
ath_chanctx_event(sc, NULL, ATH_CHANCTX_EVENT_UNASSIGN);
mutex_unlock(&sc->mutex);