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iwlwifi: dvm: take mutex when sending SYNC BT config command 

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

Cc: <stable@vger.kernel.org>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Emmanuel Grumbach 2014-03-10 15:22:03 +02:00
parent acfcd9ed58
commit 82e5a64945
1 changed files with 6 additions and 2 deletions
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8
drivers/net/wireless/iwlwifi/dvm/main.c
View File

@ -252,13 +252,17 @@ static void iwl_bg_bt_runtime_config(struct work_struct *work)
struct iwl_priv *priv = struct iwl_priv *priv =
container_of(work, struct iwl_priv, bt_runtime_config); container_of(work, struct iwl_priv, bt_runtime_config);
mutex_lock(&priv->mutex);
if (test_bit(STATUS_EXIT_PENDING, &priv->status)) if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return; goto out;
/* dont send host command if rf-kill is on */ /* dont send host command if rf-kill is on */
if (!iwl_is_ready_rf(priv)) if (!iwl_is_ready_rf(priv))
return; goto out;
iwlagn_send_advance_bt_config(priv); iwlagn_send_advance_bt_config(priv);
out:
mutex_unlock(&priv->mutex);
} }
static void iwl_bg_bt_full_concurrency(struct work_struct *work) static void iwl_bg_bt_full_concurrency(struct work_struct *work)