[osal]: add clear operation to mpp_free

git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@210 6e48237b-75ef-9749-8fc9-41990f28c85a

mpp/codec/mpp_buf_slot.cpp

@@ -93,7 +93,6 @@ MPP_RET mpp_buf_slot_deinit(MppBufSlots slots)
 
     MppBufSlotsImpl *impl = (MppBufSlotsImpl *)slots;
     delete impl->lock;
-    if (impl->slots)
     mpp_free(impl->slots);
     mpp_free(slots);
     return MPP_OK;

mpp/codec/mpp_dec.cpp

@@ -252,7 +252,7 @@ MPP_RET mpp_dec_init(MppDec **dec, MppCodingType coding)
             // then init hal with task count from parser
             MppHalCfg hal_cfg = {
                 MPP_CTX_DEC,
-                MPP_VIDEO_CodingAVC,
+                coding,
                 NULL,
                 parser_cfg.task_count,
             };
@@ -279,7 +279,6 @@ MPP_RET mpp_dec_deinit(MppDec *dec)
         return MPP_ERR_NULL_PTR;
     }
 
-    if (dec->parser_ctx)
     mpp_free(dec->parser_ctx);
 
     if (dec->hal_ctx)

mpp/hal/mpp_hal.cpp

@@ -83,7 +83,6 @@ MPP_RET mpp_hal_init(MppHal *ctx, MppHalCfg *cfg)
     }
 
     mpp_err_f("could not found coding type %d\n", cfg->coding);
-    if (p->ctx)
     mpp_free(p->ctx);
     mpp_free(p);
 
@@ -98,7 +97,6 @@ MPP_RET mpp_hal_deinit(MppHal ctx)
     }
 
     MppHalImpl *p = (MppHalImpl*)ctx;
-    if (p->ctx)
     mpp_free(p->ctx);
     if (p->tasks)
         hal_task_group_deinit(p->tasks);

mpp/legacy/vpu_api.cpp

@@ -224,14 +224,8 @@ RK_S32 vpu_close_context(VpuCodecContext **ctx)
             delete api;
             s->vpuApiObj = NULL;
         }
-        if (s->extradata) {
         mpp_free(s->extradata);
-            s->extradata = NULL;
-        }
-        if (s->private_data) {
         mpp_free(s->private_data);
-            s->private_data = NULL;
-        }
         mpp_free(s);
         *ctx = s = NULL;
 

mpp/mpi.cpp

@@ -224,7 +224,6 @@ MPP_RET mpp_deinit(MppCtx ctx)
     if (p->ctx)
         delete p->ctx;
 
-    if (p)
     mpp_free(p);
 
     MPI_FUNCTION_LEAVE();

mpp/mpp.cpp

@@ -154,7 +154,6 @@ void Mpp::clear()
         mpp_buffer_group_put(mFrameGroup);
         mFrameGroup = NULL;
     }
-    if (mTask)
     mpp_free(mTask);
 }
 

mpp/mpp_packet.cpp

@@ -58,7 +58,6 @@ MPP_RET mpp_packet_deinit(MppPacket *packet)
     }
 
     mpp_free(*packet);
-    *packet = NULL;
     return MPP_OK;
 }
 

osal/inc/mpp_mem.h

@@ -36,7 +36,13 @@
 #define mpp_realloc(ptr, type, count) \
     (type*)mpp_osal_realloc(MODULE_TAG, ptr, sizeof(type) * (count))
 
-#define mpp_free(ptr) mpp_osal_free(ptr)
+#define mpp_free(ptr) \
+    do { \
+        if (ptr) { \
+            mpp_osal_free(ptr); \
+            ptr = NULL; \
+        } \
+    } while (0)
 
 #ifdef __cplusplus
 extern "C" {

osal/mpp_allocator.cpp

@@ -121,7 +121,6 @@ MPP_RET mpp_alloctor_put(MppAllocator *allocator)
     if (p->os_api.close)
         p->os_api.close(p->ctx);
     pthread_mutex_destroy(&p->lock);
-    if (p)
     mpp_free(p);
 
     return MPP_OK;