X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fintel%2Fiwlwifi%2Fmvm%2Fdebugfs-vif.c;h=38d0bfb649ccc7db998bba57e0582e93210ab35a;hb=2bca263cdab1a3e0fce54bc2bdf1885c0cfe3195;hp=573e46956c14d6ce9ce80253880c618287aeac58;hpb=70990afa34fbac03ade78e2ad0ccd418acecfc04;p=linux-2.6-microblaze.git

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
index 573e46956c14..38d0bfb649cc 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
@@ -459,7 +459,10 @@ 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);