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Commit dc64ebad authored by Johannes Berg's avatar Johannes Berg Committed by Greg Kroah-Hartman
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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: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.4bb5ccf881a6.I62973cbb081e80aa5b0447a5c3b9c3251a65cf6b@changeid


Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 682821d9

drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c

+3 −0
Original line number Diff line number Diff line
@@ -520,7 +520,10 @@ 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);