Backport possible NULL pointer crash fix from master branch

diff --git a/src/ftdi.c b/src/ftdi.c
index 980622d..2d47028 100644 (file)
--- a/src/ftdi.c
+++ b/src/ftdi.c
@@ -45,7 +45,10 @@
 #endif
 
 #define ftdi_error_return(code, str) do {  \
-        ftdi->error_str = str;             \
+        if ( ftdi )                        \
+            ftdi->error_str = str;         \
+        else                               \
+            fprintf(stderr, str);          \
         return code;                       \
    } while(0);