It seems possible that one might like to release the mutex lock before the
return on line 7556.

julia



On Wed, 9 Nov 2016, kbuild test robot wrote:

> Hi Tamizh,
>
> [auto build test WARNING on ath6kl/ath-next]
> [cannot apply to v4.9-rc4 next-20161108]
> [if your patch is applied to the wrong git tree, please drop us a note to 
> help improve the system]
>
> url:    
> https://github.com/0day-ci/linux/commits/c_traja-qti-qualcomm-com/ath10k-Add-support-for-BTCOEX-feature/20161109-043718
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git ath-next
> :::::: branch date: 2 hours ago
> :::::: commit date: 2 hours ago
>
> >> drivers/net/wireless/ath/ath10k/mac.c:7556:2-8: preceding lock on line 7545
>
> git remote add linux-review https://github.com/0day-ci/linux
> git remote update linux-review
> git checkout 2fc922b27f111b9e8089a3e94a17ee827e769c55
> vim +7556 drivers/net/wireless/ath/ath10k/mac.c
>
> 2fc922b2 Tamizh chelvam 2016-11-08  7539
> 2fc922b2 Tamizh chelvam 2016-11-08  7540      if 
> (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags))) {
> 2fc922b2 Tamizh chelvam 2016-11-08  7541              ret = -EINVAL;
> 2fc922b2 Tamizh chelvam 2016-11-08  7542              goto exit;
> 2fc922b2 Tamizh chelvam 2016-11-08  7543      }
> 2fc922b2 Tamizh chelvam 2016-11-08  7544
> 2fc922b2 Tamizh chelvam 2016-11-08 @7545      mutex_lock(&ar->conf_mutex);
> 2fc922b2 Tamizh chelvam 2016-11-08  7546
> 2fc922b2 Tamizh chelvam 2016-11-08  7547      if (ar->state != 
> ATH10K_STATE_ON &&
> 2fc922b2 Tamizh chelvam 2016-11-08  7548          ar->state != 
> ATH10K_STATE_RESTARTED) {
> 2fc922b2 Tamizh chelvam 2016-11-08  7549              ret = -ENETDOWN;
> 2fc922b2 Tamizh chelvam 2016-11-08  7550              goto exit;
> 2fc922b2 Tamizh chelvam 2016-11-08  7551      }
> 2fc922b2 Tamizh chelvam 2016-11-08  7552
> 2fc922b2 Tamizh chelvam 2016-11-08  7553      btcoex_prio = 
> ath10k_mac_get_btcoex_prio(btcoex_priority);
> 2fc922b2 Tamizh chelvam 2016-11-08  7554
> 2fc922b2 Tamizh chelvam 2016-11-08  7555      if (btcoex_prio > 0x3f)
> 2fc922b2 Tamizh chelvam 2016-11-08 @7556              return -E2BIG;
> 2fc922b2 Tamizh chelvam 2016-11-08  7557
> 2fc922b2 Tamizh chelvam 2016-11-08  7558      ret = 
> ath10k_wmi_set_coex_param(ar, btcoex_prio);
> 2fc922b2 Tamizh chelvam 2016-11-08  7559
>
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
>

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