From: Felix Fietkau Date: Mon, 9 Mar 2026 06:07:23 +0000 (+0000) Subject: wifi: mt76: check chanctx before restoring channel after ROC X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0fb9afb74ec5bec49585772502db62613321fc6;p=thirdparty%2Flinux.git wifi: mt76: check chanctx before restoring channel after ROC mt76_remove_chanctx() sets phy->chanctx to NULL but does not clear phy->main_chandef. If ROC is later performed on that phy, completion tries to restore the stale main_chandef channel, programming the hardware to sit on a channel with no active context. Add a chanctx check to avoid restoring a channel when no context is active. Link: https://patch.msgid.link/20260309060730.87840-4-nbd@nbd.name Signed-off-by: Felix Fietkau --- diff --git a/drivers/net/wireless/mediatek/mt76/channel.c b/drivers/net/wireless/mediatek/mt76/channel.c index ae7b4ed27a5c8..cfff50892a6ed 100644 --- a/drivers/net/wireless/mediatek/mt76/channel.c +++ b/drivers/net/wireless/mediatek/mt76/channel.c @@ -324,7 +324,7 @@ void mt76_roc_complete(struct mt76_phy *phy) if (mlink) mlink->mvif->roc_phy = NULL; - if (phy->main_chandef.chan && phy->offchannel && + if (phy->chanctx && phy->main_chandef.chan && phy->offchannel && !test_bit(MT76_MCU_RESET, &dev->phy.state)) __mt76_set_channel(phy, &phy->main_chandef, false); mt76_put_vif_phy_link(phy, phy->roc_vif, phy->roc_link);