From 85efc86eb7c6cbb1c8ce8d99b10b948be033fbb9 Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Mon, 13 Apr 2009 21:41:46 -0400 Subject: [PATCH] atheros: fix propagation of bad EEPROM on regulatory init When the EEPROM is not in good condition we cannot continue so we currently bail out but only ath5k is bailing out properly. Both ath9k and ar9170 were proceeding and if a user were to run into this they'd see an obscure panic. Lets propagate the error as intended and make sure we inform the user by lifting the error message from debug to a kernel error. Stable note: You can find a port of this page here: http://bombadil.infradead.org/~mcgrof/patches/ath9k/ath9k-fix-eeprom.patch.txt Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ar9170/main.c | 2 ++ drivers/net/wireless/ath/ath9k/main.c | 5 +++-- drivers/net/wireless/ath/regd.c | 2 +- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c index 8de0ff9..857416c 100644 --- a/drivers/net/wireless/ath/ar9170/main.c +++ b/drivers/net/wireless/ath/ar9170/main.c @@ -1649,6 +1649,8 @@ int ar9170_register(struct ar9170 *ar, struct device *pdev) err = ath_regd_init(&ar->regulatory, ar->hw->wiphy, ar9170_reg_notifier); + if (err) + goto err_out; err = ieee80211_register_hw(ar->hw); if (err) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 8bf2bf3..2398d4f 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1416,8 +1416,9 @@ static int ath_init(u16 devid, struct ath_softc *sc) for (i = 0; i < sc->keymax; i++) ath9k_hw_keyreset(ah, (u16) i); - if (ath_regd_init(&sc->sc_ah->regulatory, sc->hw->wiphy, - ath9k_reg_notifier)) + error = ath_regd_init(&sc->sc_ah->regulatory, sc->hw->wiphy, + ath9k_reg_notifier); + if (error) goto bad; /* default to MONITOR mode */ diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c index 4b5c851..526c7f1 100644 --- a/drivers/net/wireless/ath/regd.c +++ b/drivers/net/wireless/ath/regd.c @@ -477,7 +477,7 @@ ath_regd_init(struct ath_regulatory *reg, u16 regdmn; if (!ath_regd_is_eeprom_valid(reg)) { - printk(KERN_DEBUG "ath: Invalid EEPROM contents\n"); + printk(KERN_ERR "ath: Invalid EEPROM contents\n"); return -EINVAL; } -- 2.7.4