diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-01-15 13:05:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-13 13:52:55 +0100 |
| commit | 01742ade928664ece1467e66645a757557e82175 (patch) | |
| tree | 769ec7834b696ce841fd930e60b7884a9f1b4dca /drivers/net/wireless/intel | |
| parent | 8f630ed7e98e5d4faf25d2086fea69eebcd5273c (diff) | |
iwlwifi: mvm: take mutex for calling iwl_mvm_get_sync_time()
[ Upstream commit 5c56d862c749669d45c256f581eac4244be00d4d ]
We need to take the mutex to call iwl_mvm_get_sync_time(), do it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.4bb5ccf881a6.I62973cbb081e80aa5b0447a5c3b9c3251a65cf6b@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/wireless/intel')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c index f043eefabb4e..7b1d2dac6ceb 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c @@ -514,7 +514,10 @@ static ssize_t iwl_dbgfs_os_device_timediff_read(struct file *file, const size_t bufsz = sizeof(buf); int pos = 0; + mutex_lock(&mvm->mutex); iwl_mvm_get_sync_time(mvm, &curr_gp2, &curr_os); + mutex_unlock(&mvm->mutex); + do_div(curr_os, NSEC_PER_USEC); diff = curr_os - curr_gp2; pos += scnprintf(buf + pos, bufsz - pos, "diff=%lld\n", diff); |