Sanity checking.

src/misc/block.c

@@ -141,6 +141,7 @@ block_t *block_Realloc( block_t *p_block, int i_prebody, int i_body )
 static void BlockRelease( block_t *p_block )
 {
     free( p_block );
+    p_block = NULL;
 }
 
 
@@ -152,6 +153,7 @@ block_fifo_t *__block_FifoNew( vlc_object_t *p_obj )
     block_fifo_t *p_fifo;
 
     p_fifo = malloc( sizeof( block_fifo_t ) );
+    if( !p_fifo ) return NULL;
     vlc_mutex_init( p_obj, &p_fifo->lock );
     vlc_cond_init( p_obj, &p_fifo->wait );
     p_fifo->i_depth = p_fifo->i_size = 0;
@@ -167,6 +169,7 @@ void block_FifoRelease( block_fifo_t *p_fifo )
     vlc_cond_destroy( &p_fifo->wait );
     vlc_mutex_destroy( &p_fifo->lock );
     free( p_fifo );
+    p_fifo = NULL;
 }
 
 void block_FifoEmpty( block_fifo_t *p_fifo )
@@ -263,4 +266,3 @@ block_t *block_FifoShow( block_fifo_t *p_fifo )
     return( b );
 
 }
-