An enum can be either signed or unsigned (implementation defined).
datatype_lookup() checks for invalid type arguments. Also check, whether
the argument is not negative (which, depending on the compiler it may
never be).
Signed-off-by: Thomas Haller <thaller@xxxxxxxxxx>
---
src/datatype.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/datatype.c b/src/datatype.c
index ba1192c83595..91735ff8b360 100644
--- a/src/datatype.c
+++ b/src/datatype.c
@@ -87,7 +87,7 @@ const struct datatype *datatype_lookup(enum datatypes type)
{
BUILD_BUG_ON(TYPE_MAX & ~TYPE_MASK);
- if (type > TYPE_MAX)
+ if ((uintmax_t) type > TYPE_MAX)
return NULL;
return datatypes[type];
}
--
2.41.0
