WiFi-HAL: Protect packet fate stats resources with mutex

Wifihal collects packet fate stats to a local buffer and the stats
will be copied to the buffers provided by framework in get() APIs.
Protect reads and writes to this buffer with a mutex to avoid
read from get() while write is going on in the event context.

BUG: 27799235

1 files changed, 2 insertions, 0 deletions

diff --git a/qcwcn/wifi_hal/wifi_hal.cpp b/qcwcn/wifi_hal/wifi_hal.cpp
index 3727e0b..0221e73 100644
--- a/qcwcn/wifi_hal/wifi_hal.cpp
+++ b/qcwcn/wifi_hal/wifi_hal.cpp
@@ -462,6 +462,7 @@ wifi_error wifi_initialize(wifi_handle *handle)
     }
 
     pthread_mutex_init(&info->cb_lock, NULL);
+    pthread_mutex_init(&info->pkt_fate_stats_lock, NULL);
 
     *handle = (wifi_handle) info;
 
@@ -654,6 +655,7 @@ static void internal_cleaned_up_handler(wifi_handle handle)
 
     (*cleaned_up_handler)(handle);
     pthread_mutex_destroy(&info->cb_lock);
+    pthread_mutex_destroy(&info->pkt_fate_stats_lock);
     free(info);
 
     ALOGI("Internal cleanup completed");