diff options
| author | Vinit Deshpande <vinitd@google.com> | 2014-06-02 09:44:35 -0700 |
|---|---|---|
| committer | Vinit Deshpande <vinitd@google.com> | 2014-06-11 14:38:50 -0700 |
| commit | bb8a4d506769d7dc8b33445c6725a40b7523063c (patch) | |
| tree | 1a703f62e996aa2ec8bd21ebe3dba389c6ee2562 /bcmdhd/wifi_hal/common.h | |
| parent | e165f3a9d7d77eed0ae55bebf885d9a879a9349c (diff) | |
| download | hardware_broadcom_wlan-bb8a4d506769d7dc8b33445c6725a40b7523063c.zip hardware_broadcom_wlan-bb8a4d506769d7dc8b33445c6725a40b7523063c.tar.gz hardware_broadcom_wlan-bb8a4d506769d7dc8b33445c6725a40b7523063c.tar.bz2 | |
Add mutual exclusion to wifi HAL infrastructure
This change restricts free access from multiple threads to event buffers.
Mutual exclusion is added to avoid crashes and corruption that may
happen because of simultaneous access from a command and an event.
Access to commands from multiple threads is still not protected. But
thankfully, framework takes care of it.
Bug: 15188917
Change-Id: I41e294f01a85097e30078f603b113da9a319ba83
Diffstat (limited to 'bcmdhd/wifi_hal/common.h')
| -rw-r--r-- | bcmdhd/wifi_hal/common.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/bcmdhd/wifi_hal/common.h b/bcmdhd/wifi_hal/common.h index cdd87fb..a73c173 100644 --- a/bcmdhd/wifi_hal/common.h +++ b/bcmdhd/wifi_hal/common.h @@ -8,6 +8,7 @@ #include <utils/Log.h> #include "nl80211_copy.h" +#include "sync.h" #define SOCKET_BUFFER_SIZE (32768U) #define RECV_BUF_SIZE (4096) @@ -95,6 +96,7 @@ typedef struct { cb_info *event_cb; // event callbacks int num_event_cb; // number of event callbacks int alloc_event_cb; // number of allocated callback objects + pthread_mutex_t cb_lock; // mutex for the event_cb access cmd_info *cmd; // Outstanding commands int num_cmd; // number of commands @@ -103,6 +105,7 @@ typedef struct { interface_info **interfaces; // array of interfaces int num_interfaces; // number of interfaces + // add other details } hal_info; |