Merge branch 'mhi-net-immutable' of https://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / drivers / net / wireless / intel / iwlwifi / mvm / debugfs-vif.c

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
index 573e469..38d0bfb 100644 (file)
--- 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);