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qcacld-3.0: Use dynamic memory allocation to avoid stack size limit

Browse source 
Due to stack size limit, use dynamic memory allocation instead of
using stack resource.

Change-Id: Icf00bc43718286e1b6239c5e35c6e11964712f8e
CRs-Fixed: 2650690
This commit is contained in:
Qun Zhang 2020-03-27 11:57:53 +08:00 • committed by nshrivas
commit f4dd3e30e4
1 changed files with 16 additions and 7 deletions
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23
core/hdd/src/wlan_hdd_cfg80211.c
View file

@ -2544,10 +2544,10 @@ static int hdd_get_external_acs_event_len(uint32_t channel_count)
int hdd_cfg80211_update_acs_config(struct hdd_adapter *adapter,
uint8_t reason)
{
struct sk_buff *skb;
struct sk_buff *skb = NULL;
struct sap_config *sap_config;
uint32_t channel_count = 0, status = -EINVAL;
uint32_t freq_list[NUM_CHANNELS] = {0};
uint32_t *freq_list;
uint32_t vendor_pcl_list[NUM_CHANNELS] = {0};
uint8_t vendor_weight_list[NUM_CHANNELS] = {0};
struct hdd_vendor_acs_chan_params acs_chan_params;
@ -2596,6 +2596,10 @@ int hdd_cfg80211_update_acs_config(struct hdd_adapter *adapter,
hdd_get_scan_band(hdd_ctx, &adapter->session.ap.sap_config, &band);
freq_list = qdf_mem_malloc(sizeof(uint32_t) * NUM_CHANNELS);
if (!freq_list)
return -ENOMEM;
if (sap_config->acs_cfg.freq_list) {
/* Copy INI or hostapd provided ACS channel range*/
for (i = 0; i < sap_config->acs_cfg.ch_list_count; i++)
@ -2612,8 +2616,10 @@ int hdd_cfg80211_update_acs_config(struct hdd_adapter *adapter,
sap_config->channel_info = qdf_mem_malloc(
sizeof(struct hdd_channel_info) *
channel_count);
if (!sap_config->channel_info)
return -ENOMEM;
if (!sap_config->channel_info) {
status = -ENOMEM;
goto fail;
}
hdd_update_reg_chan_info(adapter, channel_count, freq_list);
@ -2626,8 +2632,8 @@ int hdd_cfg80211_update_acs_config(struct hdd_adapter *adapter,
len, id, GFP_KERNEL);
if (!skb) {
hdd_err("cfg80211_vendor_event_alloc failed");
qdf_mem_free(sap_config->channel_info);
return -ENOMEM;
status = -ENOMEM;
goto fail;
}
/*
* Application expects pcl to be a subset of channel list
@ -2706,11 +2712,14 @@ int hdd_cfg80211_update_acs_config(struct hdd_adapter *adapter,
goto fail;
cfg80211_vendor_event(skb, GFP_KERNEL);
qdf_mem_free(freq_list);
qdf_mem_free(sap_config->channel_info);
return 0;
fail:
qdf_mem_free(sap_config->channel_info);
qdf_mem_free(freq_list);
if (sap_config->channel_info)
qdf_mem_free(sap_config->channel_info);
if (skb)
kfree_skb(skb);
return status;