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-rw-r--r--package/mac80211/patches/520-ath9k_multiple_cards_fix.patch91
1 files changed, 91 insertions, 0 deletions
diff --git a/package/mac80211/patches/520-ath9k_multiple_cards_fix.patch b/package/mac80211/patches/520-ath9k_multiple_cards_fix.patch
new file mode 100644
index 000000000..349807b21
--- /dev/null
+++ b/package/mac80211/patches/520-ath9k_multiple_cards_fix.patch
@@ -0,0 +1,91 @@
+--- a/drivers/net/wireless/ath/ath9k/init.c
++++ b/drivers/net/wireless/ath/ath9k/init.c
+@@ -57,7 +57,7 @@ MODULE_PARM_DESC(blink, "Enable LED blin
+ * on 5 MHz steps, we support the channels which we know
+ * we have calibration data for all cards though to make
+ * this static */
+-static struct ieee80211_channel ath9k_2ghz_chantable[] = {
++static const struct ieee80211_channel ath9k_2ghz_chantable[] = {
+ CHAN2G(2412, 0), /* Channel 1 */
+ CHAN2G(2417, 1), /* Channel 2 */
+ CHAN2G(2422, 2), /* Channel 3 */
+@@ -78,7 +78,7 @@ static struct ieee80211_channel ath9k_2g
+ * on 5 MHz steps, we support the channels which we know
+ * we have calibration data for all cards though to make
+ * this static */
+-static struct ieee80211_channel ath9k_5ghz_chantable[] = {
++static const struct ieee80211_channel ath9k_5ghz_chantable[] = {
+ /* _We_ call this UNII 1 */
+ CHAN5G(5180, 14), /* Channel 36 */
+ CHAN5G(5200, 15), /* Channel 40 */
+@@ -478,10 +478,17 @@ err:
+ return -EIO;
+ }
+
+-static void ath9k_init_channels_rates(struct ath_softc *sc)
++static int ath9k_init_channels_rates(struct ath_softc *sc)
+ {
++ void *channels;
++
+ if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) {
+- sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable;
++ channels = kmemdup(ath9k_2ghz_chantable,
++ sizeof(ath9k_2ghz_chantable), GFP_KERNEL);
++ if (!channels)
++ return -ENOMEM;
++
++ sc->sbands[IEEE80211_BAND_2GHZ].channels = channels;
+ sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
+ sc->sbands[IEEE80211_BAND_2GHZ].n_channels =
+ ARRAY_SIZE(ath9k_2ghz_chantable);
+@@ -491,7 +498,15 @@ static void ath9k_init_channels_rates(st
+ }
+
+ if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) {
+- sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable;
++ channels = kmemdup(ath9k_5ghz_chantable,
++ sizeof(ath9k_5ghz_chantable), GFP_KERNEL);
++ if (!channels) {
++ if (sc->sbands[IEEE80211_BAND_2GHZ].channels)
++ kfree(sc->sbands[IEEE80211_BAND_2GHZ].channels);
++ return -ENOMEM;
++ }
++
++ sc->sbands[IEEE80211_BAND_5GHZ].channels = channels;
+ sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
+ sc->sbands[IEEE80211_BAND_5GHZ].n_channels =
+ ARRAY_SIZE(ath9k_5ghz_chantable);
+@@ -500,6 +515,7 @@ static void ath9k_init_channels_rates(st
+ sc->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
+ ARRAY_SIZE(ath9k_legacy_rates) - 4;
+ }
++ return 0;
+ }
+
+ static void ath9k_init_misc(struct ath_softc *sc)
+@@ -602,8 +618,11 @@ static int ath9k_init_softc(u16 devid, s
+ if (ret)
+ goto err_btcoex;
+
++ ret = ath9k_init_channels_rates(sc);
++ if (ret)
++ goto err_btcoex;
++
+ ath9k_init_crypto(sc);
+- ath9k_init_channels_rates(sc);
+ ath9k_init_misc(sc);
+
+ return 0;
+@@ -784,6 +803,12 @@ static void ath9k_deinit_softc(struct at
+ {
+ int i = 0;
+
++ if (sc->sbands[IEEE80211_BAND_2GHZ].channels)
++ kfree(sc->sbands[IEEE80211_BAND_2GHZ].channels);
++
++ if (sc->sbands[IEEE80211_BAND_5GHZ].channels)
++ kfree(sc->sbands[IEEE80211_BAND_5GHZ].channels);
++
+ if ((sc->btcoex.no_stomp_timer) &&
+ sc->sc_ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
+ ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer);