38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
From: Felix Fietkau <nbd@openwrt.org>
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Date: Thu, 13 Nov 2014 18:27:47 +0100
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Subject: [PATCH] ath9k: prevent early IRQs from accessing hardware
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IRQs are suppressed if ah == NULL and ATH_OP_INVALID being set in
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common->op_flags. Close a short time window between those two.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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--- a/drivers/net/wireless/ath/ath9k/init.c
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+++ b/drivers/net/wireless/ath/ath9k/init.c
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@@ -513,10 +513,14 @@ static int ath9k_init_softc(u16 devid, s
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ah->reg_ops.read = ath9k_ioread32;
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ah->reg_ops.write = ath9k_iowrite32;
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ah->reg_ops.rmw = ath9k_reg_rmw;
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- sc->sc_ah = ah;
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pCap = &ah->caps;
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common = ath9k_hw_common(ah);
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+
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+ /* Will be cleared in ath9k_start() */
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+ set_bit(ATH_OP_INVALID, &common->op_flags);
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+
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+ sc->sc_ah = ah;
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sc->dfs_detector = dfs_pattern_detector_init(common, NL80211_DFS_UNSET);
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sc->tx99_power = MAX_RATE_POWER + 1;
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init_waitqueue_head(&sc->tx_wait);
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@@ -876,9 +880,6 @@ int ath9k_init_device(u16 devid, struct
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common = ath9k_hw_common(ah);
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ath9k_set_hw_capab(sc, hw);
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- /* Will be cleared in ath9k_start() */
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- set_bit(ATH_OP_INVALID, &common->op_flags);
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-
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/* Initialize regulatory */
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error = ath_regd_init(&common->regulatory, sc->hw->wiphy,
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ath9k_reg_notifier);
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