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qcacld-3.0: Free llstats buffer if get fails

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__wlan_hdd_open_ll_stats_debugfs() fails to free the llstats buffer in
the event that wlan_hdd_ll_stats_get() fails. Add error handling for
this call which frees the newly allocated buffer.

Change-Id: Ic5cff77a758ff81da82dd1143d77da68d87b9291
CRs-Fixed: 2304715
This commit is contained in:
Dustin Brown 2018-08-28 15:03:59 -07:00 • committed by nshrivas
commit 5e56f90a68
1 changed files with 13 additions and 6 deletions
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21
core/hdd/src/wlan_hdd_debugfs_llstat.c
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@ -436,29 +436,36 @@ static int __wlan_hdd_open_ll_stats_debugfs(struct inode *inode,
file->private_data = inode->i_private;
adapter = (struct hdd_adapter *)file->private_data;
if ((NULL == adapter) || (WLAN_HDD_ADAPTER_MAGIC != adapter->magic)) {
if (!adapter || WLAN_HDD_ADAPTER_MAGIC != adapter->magic) {
hdd_err("Invalid adapter or adapter has invalid magic");
return -EINVAL;
}
hdd_ctx = WLAN_HDD_GET_CTX(adapter);
ret = wlan_hdd_validate_context(hdd_ctx);
if (0 != ret)
if (ret)
return ret;
ret = wlan_hdd_llstats_alloc_buf();
if (0 != ret)
if (ret)
return ret;
ret = wlan_hdd_ll_stats_get(adapter, DEBUGFS_LLSTATS_REQID,
DEBUGFS_LLSTATS_REQMASK);
if (0 != ret)
return ret;
if (ret)
goto free_buf;
hdd_exit();
return 0;
}
return 0;
free_buf:
wlan_hdd_llstats_free_buf();
hdd_exit();
return ret;
}
/**
* wlan_hdd_open_ll_stats_debugfs() - SSR wrapper function to save private