diff --git a/tools/testing/selftests/vDSO/parse_vdso.c b/tools/testing/selftests/vDSO/parse_vdso.c
index 413f75620a35..62c597e88189 100644
--- a/tools/testing/selftests/vDSO/parse_vdso.c
+++ b/tools/testing/selftests/vDSO/parse_vdso.c
@@ -62,7 +62,8 @@ static unsigned long elf_hash(const unsigned char *name)
 	while (*name)
 	{
 		h = (h << 4) + *name++;
-		if (g = h & 0xf0000000)
+		g = h & 0xf0000000;
+		if (h)
 			h ^= g >> 24;
 		h &= ~g;
 	}