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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-03-10 15:22:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-13 13:59:43 +0200 |
| commit | 6e6d61f30ed8bac11313cbb0f8f0031f1bd5a268 (patch) | |
| tree | e822ee95029c06f0015a067a169049f79e67955f | |
| parent | cfd192c9983ea4e993cabf4f899ef587f31ab51e (diff) | |
| download | lwn-6e6d61f30ed8bac11313cbb0f8f0031f1bd5a268.tar.gz lwn-6e6d61f30ed8bac11313cbb0f8f0031f1bd5a268.zip | |
iwlwifi: dvm: take mutex when sending SYNC BT config command
commit 82e5a649453a3cf23516277abb84273768a1592b upstream.
There is a flow in which we send the host command in SYNC
mode, but we don't take priv->mutex.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1046495
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/dvm/main.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c index a8afc7bee545..c2b8e49d00d3 100644 --- a/drivers/net/wireless/iwlwifi/dvm/main.c +++ b/drivers/net/wireless/iwlwifi/dvm/main.c @@ -252,13 +252,17 @@ static void iwl_bg_bt_runtime_config(struct work_struct *work) struct iwl_priv *priv = container_of(work, struct iwl_priv, bt_runtime_config); + mutex_lock(&priv->mutex); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; + goto out; /* dont send host command if rf-kill is on */ if (!iwl_is_ready_rf(priv)) - return; + goto out; + iwlagn_send_advance_bt_config(priv); +out: + mutex_unlock(&priv->mutex); } static void iwl_bg_bt_full_concurrency(struct work_struct *work) |