NULL safety checks

[melted] / src / framework / mlt_field.c

diff --git a/src/framework/mlt_field.c b/src/framework/mlt_field.c
index eede159..94c4cb8 100644 (file)
--- a/src/framework/mlt_field.c
+++ b/src/framework/mlt_field.c
@@ -78,7 +78,7 @@ mlt_field mlt_field_init( )
 
 mlt_service mlt_field_service( mlt_field this )
 {
-       return mlt_tractor_service( this->tractor );
+       return this != NULL ? mlt_tractor_service( this->tractor ) : NULL;
 }
 
 /** Get the multi track.
@@ -86,7 +86,7 @@ mlt_service mlt_field_service( mlt_field this )
 
 mlt_multitrack mlt_field_multitrack( mlt_field this )
 {
-       return this->multitrack;
+       return this != NULL ? this->multitrack : NULL;
 }
 
 /** Get the tractor.
@@ -94,7 +94,7 @@ mlt_multitrack mlt_field_multitrack( mlt_field this )
 
 mlt_tractor mlt_field_tractor( mlt_field this )
 {
-       return this->tractor;
+       return this != NULL ? this->tractor : NULL;
 }
 
 /** Get the properties associated to this field.