Fix code warning.

Change-Id: Ib11fb49f528d3688351ae349d5b4e307c28b3967
diff --git a/mbtk/libmbtk_lib/fota/mbtk_fota.c b/mbtk/libmbtk_lib/fota/mbtk_fota.c
index 323ec9b..6d5d3e8 100755
--- a/mbtk/libmbtk_lib/fota/mbtk_fota.c
+++ b/mbtk/libmbtk_lib/fota/mbtk_fota.c
@@ -23,7 +23,8 @@
 

 #include "mbtk_fota.h"

 #include "mbtk_log.h"

-

+#include "mbtk_utils.h"

+#include "mbtk_type.h"

 

 #ifdef DEBUG

     #define fota_log(...)                    printf(__VA_ARGS__)

@@ -31,7 +32,6 @@
     #define fota_log(...)

 #endif

 

-#define UNUSEDPARAM(param) (void)param;

 #define OTA_MAX_STRING_LEN	128

 

 static struct ubus_context    *fota_ubus_ctx = NULL;

@@ -164,7 +164,7 @@
     if(!access("/sys/power/wake_lock", W_OK))

     {

         sprintf(cmd, "echo %s > /sys/power/wake_lock", "ota_lock");

-        system(cmd);

+        mbtk_system(cmd);

         LOGE("/sys/power/wake_lock success\n");

     }

     else

@@ -202,7 +202,7 @@
     {

         char cmd[128]={0};

         sprintf(cmd, "echo %s > /sys/power/wake_unlock", "ota_lock");

-        system(cmd);

+        mbtk_system(cmd);

         LOGE("/sys/power/wake_unlock success\n");

     }

     else

@@ -246,7 +246,7 @@
     if(!access("/sys/power/wake_lock", W_OK))

     {

         sprintf(cmd, "echo %s > /sys/power/wake_lock", "ota_lock");

-        system(cmd);

+        mbtk_system(cmd);

         LOGE("/sys/power/wake_lock success\n");

     }

     else

@@ -285,7 +285,7 @@
     {

         char cmd[128]={0};

         sprintf(cmd, "echo %s > /sys/power/wake_unlock", "ota_lock");

-        system(cmd);

+        mbtk_system(cmd);

         LOGE("/sys/power/wake_unlock success\n");

     }

     else

@@ -335,8 +335,8 @@
     fota_cb = NULL;

 

     if (is_reboot) {

-        system("sync");

-        system("reboot");

+        mbtk_system("sync");

+        mbtk_system("reboot");

     }

     return 0;

 

@@ -345,15 +345,15 @@
 int mbtk_fota_done1(int is_reboot)

 {

     if (is_reboot) {

-        system("sync");

-        system("reboot");

+        mbtk_system("sync");

+        mbtk_system("reboot");

     }

     return 0;

 }

 

 void* mbtk_fota_thread(void* argc)

 {

-    int ret, retries = 0;

+    int ret;

     UNUSEDPARAM(argc);

 

     printf("mbtk_fota_thread() start\n");

@@ -378,7 +378,6 @@
 

 int mbtk_fota_init(fota_callback cb)

 {

-    int id;

     int retries = 0;

 

     /*create ubus loop to listen to RIL event*/