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-rw-r--r--util/cbfstool/flashmap/fmap.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/util/cbfstool/flashmap/fmap.c b/util/cbfstool/flashmap/fmap.c
index f803d6c0da..24181d0b43 100644
--- a/util/cbfstool/flashmap/fmap.c
+++ b/util/cbfstool/flashmap/fmap.c
@@ -89,12 +89,12 @@ static int is_valid_fmap(const struct fmap *fmap)
while (i < FMAP_STRLEN) {
if (fmap->name[i] == 0)
break;
- if (!isalnum(fmap->name[i]))
+ if (!isgraph(fmap->name[i]))
return 0;
if (i == FMAP_STRLEN - 1) {
- /* name is specified to be null terminated. We didn't
- * break in the 0 test, we didn't fail on the alnum
- * test, so we're seeing FMAP_STRLEN alphanumerical
+ /* name is specified to be null terminated single-word string
+ * without spaces. We did not break in the 0 test, we know it
+ * is a printable spaceless string but we're seeing FMAP_STRLEN
* symbols, which is one too many.
*/
return 0;