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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-03-10 14:22:03 +0100
committerEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-03-11 12:15:16 +0100
commit82e5a649453a3cf23516277abb84273768a1592b (patch)
tree139304ff7a095ae8c5df55fa04fdc16c9a9321be
parentiwlwifi: fix and add 7265 series HW IDs (diff)
downloadlinux-82e5a649453a3cf23516277abb84273768a1592b.tar.xz
linux-82e5a649453a3cf23516277abb84273768a1592b.zip
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>
-rw-r--r--drivers/net/wireless/iwlwifi/dvm/main.c8
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 ba1b1ea54252..ea7e70cb34f0 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)