commit dc22d8d022496483722ed0b9b0365435c0616068
author Andrzej Kurek <andrzej.kurek@arm.com> Thu Sep 05 09:34:34 2019 -0400
committer Andrzej Kurek <andrzej.kurek@arm.com> Thu Sep 05 09:34:34 2019 -0400
tree 2d0147bcd7f556e5685ba40c1d73f92148afdd13
parent 822b8f65bdfed488390e84ebb213ab6374839615

Add an input check in psa_its_set

library/psa_its_file.c

diff --git a/library/psa_its_file.c b/library/psa_its_file.c
index 05ca8af..0935b27 100644
--- a/library/psa_its_file.c
+++ b/library/psa_its_file.c
@@ -214,9 +214,12 @@
     n = fwrite( &header, 1, sizeof( header ), stream );
     if( n != sizeof( header ) )
         goto exit;
-    n = fwrite( p_data, 1, data_length, stream );
-    if( n != data_length )
-        goto exit;
+    if( data_length != 0 )
+    {
+        n = fwrite( p_data, 1, data_length, stream );
+        if( n != data_length )
+            goto exit;
+    }
     status = PSA_SUCCESS;
 
 exit: