1 files changed, 4 insertions, 2 deletions

diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index b633bdb9f3d4..c18f2bd9c095 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -90,8 +90,10 @@ struct conf_printer {
 /* confdata.c and expr.c */
 static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
 {
-        if (fwrite(str, len, count, out) < count)
-                fprintf(stderr, "\nError in writing or end of file.\n");
+        assert(len != 0);
+
+        if (fwrite(str, len, count, out) != count)
+                fprintf(stderr, "Error in writing or end of file.\n");
 }
 
 /* menu.c */