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qcacld-3.0: Fix free_pool referencing in hdd_lro_desc_find

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list_empty api does not work correctly on copied list head.
Need to point to the original free_pool memory so that the
spinlocking and list management apis work as expected on
the original memory.

Change-Id: I631466d156c83f70cb6ea06eec0e361081f294cc
CRs-Fixed: 1070258
This commit is contained in:
Houston Hoffman 2016-09-21 16:57:28 -07:00 • committed by qcabuildsw
commit 2359ca00da
1 changed files with 6 additions and 11 deletions
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17
core/hdd/src/wlan_hdd_lro.c
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@ -214,7 +214,7 @@ static int hdd_lro_desc_find(hdd_adapter_t *adapter,
struct hdd_lro_desc_table *lro_hash_table;
struct list_head *ptr;
struct hdd_lro_desc_entry *entry;
struct hdd_lro_desc_pool free_pool;
struct hdd_lro_desc_pool *free_pool;
struct hdd_lro_desc_info *desc_info = &adapter->lro_info.lro_desc_info;
*lro_desc = NULL;
@ -245,24 +245,19 @@ static int hdd_lro_desc_find(hdd_adapter_t *adapter,
qdf_spin_unlock_bh(&desc_info->lro_hash_lock);
/* no existing flow found, a new LRO desc needs to be allocated */
free_pool = adapter->lro_info.lro_desc_info.lro_desc_pool;
qdf_spin_lock_bh(&free_pool.lro_pool_lock);
free_pool = &adapter->lro_info.lro_desc_info.lro_desc_pool;
qdf_spin_lock_bh(&free_pool->lro_pool_lock);
entry = list_first_entry_or_null(
&free_pool.lro_free_list_head,
&free_pool->lro_free_list_head,
struct hdd_lro_desc_entry, lro_node);
if (NULL == entry) {
hdd_err("Could not allocate LRO desc!");
qdf_spin_unlock_bh(&free_pool.lro_pool_lock);
qdf_spin_unlock_bh(&free_pool->lro_pool_lock);
return -ENOMEM;
}
if (list_empty(&entry->lro_node)) {
hdd_err("Reached max supported lro_desc range\n");
return -EINVAL;
}
list_del_init(&entry->lro_node);
qdf_spin_unlock_bh(&free_pool.lro_pool_lock);
qdf_spin_unlock_bh(&free_pool->lro_pool_lock);
if (NULL == entry->lro_desc) {
hdd_err("entry->lro_desc is NULL!\n");