linux-kernel - drivers/net/wireless/ath/ath11k/mac.c:1892:7: warning: Uninitialized variable: ret

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Date:   Tue, 2 Mar 2021 01:02:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Aloka Dixit <alokad@...eaurora.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Kalle Valo <kvalo@...eaurora.org>
Subject: drivers/net/wireless/ath/ath11k/mac.c:1892:7: warning: Uninitialized
 variable: ret

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   fe07bfda2fb9cdef8a4d4008a409bb02f35f1bd8
commit: 047679e366b9842a9da3ab82dca26fcaad8020eb ath11k: FILS discovery and unsolicited broadcast probe response support
date:   4 months ago
compiler: or1k-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>


"cppcheck warnings: (new ones prefixed by >>)"
>> drivers/net/wireless/ath/ath11k/mac.c:1892:7: warning: Uninitialized variable: ret [uninitvar]
    if (!ret)
         ^

vim +1892 drivers/net/wireless/ath/ath11k/mac.c

  1852	
  1853	static int ath11k_mac_fils_discovery(struct ath11k_vif *arvif,
  1854					     struct ieee80211_bss_conf *info)
  1855	{
  1856		struct ath11k *ar = arvif->ar;
  1857		struct sk_buff *tmpl;
  1858		int ret;
  1859		u32 interval;
  1860		bool unsol_bcast_probe_resp_enabled = false;
  1861	
  1862		if (info->fils_discovery.max_interval) {
  1863			interval = info->fils_discovery.max_interval;
  1864	
  1865			tmpl = ieee80211_get_fils_discovery_tmpl(ar->hw, arvif->vif);
  1866			if (tmpl)
  1867				ret = ath11k_wmi_fils_discovery_tmpl(ar, arvif->vdev_id,
  1868								     tmpl);
  1869		} else if (info->unsol_bcast_probe_resp_interval) {
  1870			unsol_bcast_probe_resp_enabled = 1;
  1871			interval = info->unsol_bcast_probe_resp_interval;
  1872	
  1873			tmpl = ieee80211_get_unsol_bcast_probe_resp_tmpl(ar->hw,
  1874									 arvif->vif);
  1875			if (tmpl)
  1876				ret = ath11k_wmi_probe_resp_tmpl(ar, arvif->vdev_id,
  1877								 tmpl);
  1878		} else { /* Disable */
  1879			return ath11k_wmi_fils_discovery(ar, arvif->vdev_id, 0, false);
  1880		}
  1881	
  1882		if (!tmpl) {
  1883			ath11k_warn(ar->ab,
  1884				    "mac vdev %i failed to retrieve %s template\n",
  1885				    arvif->vdev_id, (unsol_bcast_probe_resp_enabled ?
  1886				    "unsolicited broadcast probe response" :
  1887				    "FILS discovery"));
  1888			return -EPERM;
  1889		}
  1890		kfree_skb(tmpl);
  1891	
> 1892		if (!ret)
  1893			ret = ath11k_wmi_fils_discovery(ar, arvif->vdev_id, interval,
  1894							unsol_bcast_probe_resp_enabled);
  1895	
  1896		return ret;
  1897	}
  1898	

---
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