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-rw-r--r--libcrystfel/src/events.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libcrystfel/src/events.c b/libcrystfel/src/events.c
index 8e4eb861..d0e521d3 100644
--- a/libcrystfel/src/events.c
+++ b/libcrystfel/src/events.c
@@ -150,6 +150,8 @@ struct event *copy_event(struct event *ev)
struct event *new_ev;
int pi, di;
+ if ( ev == NULL ) return NULL;
+
if ( ev->dim_length == 0 && ev->path_length == 0) {
new_ev = initialize_event();
@@ -252,6 +254,8 @@ void free_event(struct event *ev)
{
int pi;
+ if ( ev == NULL ) return;
+
if ( ev->path_length != 0 ) {
for ( pi=0; pi<ev->path_length; pi++ ) {
free(ev->path_entries[pi]);