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Commit 60ce473e authored by Jing Wang's avatar Jing Wang Committed by John W. Linville
Browse files

wl1251: return -ENOMEM if kzalloc fails 



the original code used goto out if kzalloc fails,but the out include kfree,
so return -ENOMEM if kzalloc fails.

Signed-off-by: default avatarJing Wang <windsdaemon@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d94248ac

drivers/net/wireless/ti/wl1251/acx.c

+68 −141
Original line number Diff line number Diff line
@@ -18,10 +18,8 @@ int wl1251_acx_frame_rates(struct wl1251 *wl, u8 ctrl_rate, u8 ctrl_mod, 
	wl1251_debug(DEBUG_ACX, "acx frame rates");



	rates = kzalloc(sizeof(*rates), GFP_KERNEL);

	if (!rates) {

		ret = -ENOMEM;

		goto out;

	}

	if (!rates)

		return -ENOMEM;



	rates->tx_ctrl_frame_rate = ctrl_rate;

	rates->tx_ctrl_frame_mod = ctrl_mod;
@@ -49,10 +47,8 @@ int wl1251_acx_station_id(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx dot11_station_id");



	mac = kzalloc(sizeof(*mac), GFP_KERNEL);

	if (!mac) {

		ret = -ENOMEM;

		goto out;

	}

	if (!mac)

		return -ENOMEM;



	for (i = 0; i < ETH_ALEN; i++)

		mac->mac[i] = wl->mac_addr[ETH_ALEN - 1 - i];
@@ -74,10 +70,8 @@ int wl1251_acx_default_key(struct wl1251 *wl, u8 key_id) 
	wl1251_debug(DEBUG_ACX, "acx dot11_default_key (%d)", key_id);



	default_key = kzalloc(sizeof(*default_key), GFP_KERNEL);

	if (!default_key) {

		ret = -ENOMEM;

		goto out;

	}

	if (!default_key)

		return -ENOMEM;



	default_key->id = key_id;
@@ -104,10 +98,8 @@ int wl1251_acx_wake_up_conditions(struct wl1251 *wl, u8 wake_up_event, 
	wl1251_debug(DEBUG_ACX, "acx wake up conditions");



	wake_up = kzalloc(sizeof(*wake_up), GFP_KERNEL);

	if (!wake_up) {

		ret = -ENOMEM;

		goto out;

	}

	if (!wake_up)

		return -ENOMEM;



	wake_up->wake_up_event = wake_up_event;

	wake_up->listen_interval = listen_interval;
@@ -132,16 +124,13 @@ int wl1251_acx_sleep_auth(struct wl1251 *wl, u8 sleep_auth) 
	wl1251_debug(DEBUG_ACX, "acx sleep auth");



	auth = kzalloc(sizeof(*auth), GFP_KERNEL);

	if (!auth) {

		ret = -ENOMEM;

		goto out;

	}

	if (!auth)

		return -ENOMEM;



	auth->sleep_auth = sleep_auth;



	ret = wl1251_cmd_configure(wl, ACX_SLEEP_AUTH, auth, sizeof(*auth));



out:

	kfree(auth);

	return ret;

}
@@ -154,10 +143,8 @@ int wl1251_acx_fw_version(struct wl1251 *wl, char *buf, size_t len) 
	wl1251_debug(DEBUG_ACX, "acx fw rev");



	rev = kzalloc(sizeof(*rev), GFP_KERNEL);

	if (!rev) {

		ret = -ENOMEM;

		goto out;

	}

	if (!rev)

		return -ENOMEM;



	ret = wl1251_cmd_interrogate(wl, ACX_FW_REV, rev, sizeof(*rev));

	if (ret < 0) {
@@ -191,10 +178,8 @@ int wl1251_acx_tx_power(struct wl1251 *wl, int power) 
		return -EINVAL;



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);

	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	acx->current_tx_power = power * 10;
@@ -217,10 +202,8 @@ int wl1251_acx_feature_cfg(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx feature cfg");



	feature = kzalloc(sizeof(*feature), GFP_KERNEL);

	if (!feature) {

		ret = -ENOMEM;

		goto out;

	}

	if (!feature)

		return -ENOMEM;



	/* DF_ENCRYPTION_DISABLE and DF_SNIFF_MODE_ENABLE are disabled */

	feature->data_flow_options = 0;
@@ -261,10 +244,8 @@ int wl1251_acx_data_path_params(struct wl1251 *wl, 
	wl1251_debug(DEBUG_ACX, "acx data path params");



	params = kzalloc(sizeof(*params), GFP_KERNEL);

	if (!params) {

		ret = -ENOMEM;

		goto out;

	}

	if (!params)

		return -ENOMEM;



	params->rx_packet_ring_chunk_size = DP_RX_PACKET_RING_CHUNK_SIZE;

	params->tx_packet_ring_chunk_size = DP_TX_PACKET_RING_CHUNK_SIZE;
@@ -309,10 +290,8 @@ int wl1251_acx_rx_msdu_life_time(struct wl1251 *wl, u32 life_time) 
	wl1251_debug(DEBUG_ACX, "acx rx msdu life time");



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);

	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	acx->lifetime = life_time;

	ret = wl1251_cmd_configure(wl, DOT11_RX_MSDU_LIFE_TIME,
@@ -335,10 +314,8 @@ int wl1251_acx_rx_config(struct wl1251 *wl, u32 config, u32 filter) 
	wl1251_debug(DEBUG_ACX, "acx rx config");



	rx_config = kzalloc(sizeof(*rx_config), GFP_KERNEL);

	if (!rx_config) {

		ret = -ENOMEM;

		goto out;

	}

	if (!rx_config)

		return -ENOMEM;



	rx_config->config_options = config;

	rx_config->filter_options = filter;
@@ -363,10 +340,8 @@ int wl1251_acx_pd_threshold(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx data pd threshold");



	pd = kzalloc(sizeof(*pd), GFP_KERNEL);

	if (!pd) {

		ret = -ENOMEM;

		goto out;

	}

	if (!pd)

		return -ENOMEM;



	/* FIXME: threshold value not set */
@@ -389,10 +364,8 @@ int wl1251_acx_slot(struct wl1251 *wl, enum acx_slot_type slot_time) 
	wl1251_debug(DEBUG_ACX, "acx slot");



	slot = kzalloc(sizeof(*slot), GFP_KERNEL);

	if (!slot) {

		ret = -ENOMEM;

		goto out;

	}

	if (!slot)

		return -ENOMEM;



	slot->wone_index = STATION_WONE_INDEX;

	slot->slot_time = slot_time;
@@ -416,10 +389,8 @@ int wl1251_acx_group_address_tbl(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx group address tbl");



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);

	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	/* MAC filtering */

	acx->enabled = 0;
@@ -444,10 +415,8 @@ int wl1251_acx_service_period_timeout(struct wl1251 *wl) 
	int ret;



	rx_timeout = kzalloc(sizeof(*rx_timeout), GFP_KERNEL);

	if (!rx_timeout) {

		ret = -ENOMEM;

		goto out;

	}

	if (!rx_timeout)

		return -ENOMEM;



	wl1251_debug(DEBUG_ACX, "acx service period timeout");
@@ -475,10 +444,8 @@ int wl1251_acx_rts_threshold(struct wl1251 *wl, u16 rts_threshold) 
	wl1251_debug(DEBUG_ACX, "acx rts threshold");



	rts = kzalloc(sizeof(*rts), GFP_KERNEL);

	if (!rts) {

		ret = -ENOMEM;

		goto out;

	}

	if (!rts)

		return -ENOMEM;



	rts->threshold = rts_threshold;
@@ -501,10 +468,8 @@ int wl1251_acx_beacon_filter_opt(struct wl1251 *wl, bool enable_filter) 
	wl1251_debug(DEBUG_ACX, "acx beacon filter opt");



	beacon_filter = kzalloc(sizeof(*beacon_filter), GFP_KERNEL);

	if (!beacon_filter) {

		ret = -ENOMEM;

		goto out;

	}

	if (!beacon_filter)

		return -ENOMEM;



	beacon_filter->enable = enable_filter;

	beacon_filter->max_num_beacons = 0;
@@ -530,10 +495,8 @@ int wl1251_acx_beacon_filter_table(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx beacon filter table");



	ie_table = kzalloc(sizeof(*ie_table), GFP_KERNEL);

	if (!ie_table) {

		ret = -ENOMEM;

		goto out;

	}

	if (!ie_table)

		return -ENOMEM;



	/* configure default beacon pass-through rules */

	ie_table->num_ie = 1;
@@ -560,10 +523,8 @@ int wl1251_acx_conn_monit_params(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx connection monitor parameters");



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);

	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	acx->synch_fail_thold = SYNCH_FAIL_DEFAULT_THRESHOLD;

	acx->bss_lose_timeout = NO_BEACON_DEFAULT_TIMEOUT;
@@ -589,10 +550,8 @@ int wl1251_acx_sg_enable(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx sg enable");



	pta = kzalloc(sizeof(*pta), GFP_KERNEL);

	if (!pta) {

		ret = -ENOMEM;

		goto out;

	}

	if (!pta)

		return -ENOMEM;



	pta->enable = SG_ENABLE;
@@ -615,10 +574,8 @@ int wl1251_acx_sg_cfg(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx sg cfg");



	param = kzalloc(sizeof(*param), GFP_KERNEL);

	if (!param) {

		ret = -ENOMEM;

		goto out;

	}

	if (!param)

		return -ENOMEM;



	/* BT-WLAN coext parameters */

	param->min_rate = RATE_INDEX_24MBPS;
@@ -669,10 +626,8 @@ int wl1251_acx_cca_threshold(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx cca threshold");



	detection = kzalloc(sizeof(*detection), GFP_KERNEL);

	if (!detection) {

		ret = -ENOMEM;

		goto out;

	}

	if (!detection)

		return -ENOMEM;



	detection->rx_cca_threshold = CCA_THRSH_DISABLE_ENERGY_D;

	detection->tx_energy_detection = 0;
@@ -682,7 +637,6 @@ int wl1251_acx_cca_threshold(struct wl1251 *wl) 
	if (ret < 0)

		wl1251_warning("failed to set cca threshold: %d", ret);



out:

	kfree(detection);

	return ret;

}
@@ -695,10 +649,8 @@ int wl1251_acx_bcn_dtim_options(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx bcn dtim options");



	bb = kzalloc(sizeof(*bb), GFP_KERNEL);

	if (!bb) {

		ret = -ENOMEM;

		goto out;

	}

	if (!bb)

		return -ENOMEM;



	bb->beacon_rx_timeout = BCN_RX_TIMEOUT_DEF_VALUE;

	bb->broadcast_timeout = BROADCAST_RX_TIMEOUT_DEF_VALUE;
@@ -724,10 +676,8 @@ int wl1251_acx_aid(struct wl1251 *wl, u16 aid) 
	wl1251_debug(DEBUG_ACX, "acx aid");



	acx_aid = kzalloc(sizeof(*acx_aid), GFP_KERNEL);

	if (!acx_aid) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx_aid)

		return -ENOMEM;



	acx_aid->aid = aid;
@@ -750,10 +700,8 @@ int wl1251_acx_event_mbox_mask(struct wl1251 *wl, u32 event_mask) 
	wl1251_debug(DEBUG_ACX, "acx event mbox mask");



	mask = kzalloc(sizeof(*mask), GFP_KERNEL);

	if (!mask) {

		ret = -ENOMEM;

		goto out;

	}

	if (!mask)

		return -ENOMEM;



	/* high event mask is unused */

	mask->high_event_mask = 0xffffffff;
@@ -805,10 +753,8 @@ int wl1251_acx_set_preamble(struct wl1251 *wl, enum acx_preamble_type preamble) 
	wl1251_debug(DEBUG_ACX, "acx_set_preamble");



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);

	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	acx->preamble = preamble;
@@ -832,10 +778,8 @@ int wl1251_acx_cts_protect(struct wl1251 *wl, 
	wl1251_debug(DEBUG_ACX, "acx_set_ctsprotect");



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);

	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	acx->ctsprotect = ctsprotect;
@@ -856,10 +800,8 @@ int wl1251_acx_tsf_info(struct wl1251 *wl, u64 *mactime) 
	int ret;



	tsf_info = kzalloc(sizeof(*tsf_info), GFP_KERNEL);

	if (!tsf_info) {

		ret = -ENOMEM;

		goto out;

	}

	if (!tsf_info)

		return -ENOMEM;



	ret = wl1251_cmd_interrogate(wl, ACX_TSF_INFO,

				     tsf_info, sizeof(*tsf_info));
@@ -900,11 +842,8 @@ int wl1251_acx_rate_policies(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx rate policies");



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);



	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	/* configure one default (one-size-fits-all) rate class */

	acx->rate_class_cnt = 1;
@@ -932,10 +871,8 @@ int wl1251_acx_mem_cfg(struct wl1251 *wl) 
	wl1251_debug(DEBUG_ACX, "acx mem cfg");



	mem_conf = kzalloc(sizeof(*mem_conf), GFP_KERNEL);

	if (!mem_conf) {

		ret = -ENOMEM;

		goto out;

	}

	if (!mem_conf)

		return -ENOMEM;



	/* memory config */

	mem_conf->mem_config.num_stations = cpu_to_le16(DEFAULT_NUM_STATIONS);
@@ -979,10 +916,8 @@ int wl1251_acx_wr_tbtt_and_dtim(struct wl1251 *wl, u16 tbtt, u8 dtim) 
	wl1251_debug(DEBUG_ACX, "acx tbtt and dtim");



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);

	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	acx->tbtt = tbtt;

	acx->dtim = dtim;
@@ -1008,10 +943,8 @@ int wl1251_acx_bet_enable(struct wl1251 *wl, enum wl1251_acx_bet_mode mode, 
	wl1251_debug(DEBUG_ACX, "acx bet enable");



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);

	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	acx->enable = mode;

	acx->max_consecutive = max_consecutive;
@@ -1037,11 +970,8 @@ int wl1251_acx_ac_cfg(struct wl1251 *wl, u8 ac, u8 cw_min, u16 cw_max, 
		     "aifs %d txop %d", ac, cw_min, cw_max, aifs, txop);



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);



	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	acx->ac = ac;

	acx->cw_min = cw_min;
@@ -1073,11 +1003,8 @@ int wl1251_acx_tid_cfg(struct wl1251 *wl, u8 queue, 
		     ps_scheme, ack_policy);



	acx = kzalloc(sizeof(*acx), GFP_KERNEL);



	if (!acx) {

		ret = -ENOMEM;

		goto out;

	}

	if (!acx)

		return -ENOMEM;



	acx->queue = queue;

	acx->type = type;