lib: Only call strlen if necessary in strv

Signed-off-by: Volker Lendecke <[email protected]> Reviewed-by: Ralph Boehme <[email protected]>
masumbuet · Nov 29, 2017 · 8e824ad · 8e824ad
1 parent 805ae8a
commit 8e824ad
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/lib/util/strv.c b/lib/util/strv.c
@@ -79,7 +79,9 @@ static bool strv_valid_entry(const char *strv, size_t strv_len,
 		return false;
 	}
 
-	*entry_len = strlen(entry);
+	if (entry_len != NULL) {
+		*entry_len = strlen(entry);
+	}
 
 	return true;
 }
@@ -91,7 +93,7 @@ char *strv_next(char *strv, const char *entry)
 	char *result;
 
 	if (entry == NULL) {
-		if (strv_valid_entry(strv, len, strv, &entry_len)) {
+		if (strv_valid_entry(strv, len, strv, NULL)) {
 			return strv;
 		}
 		return NULL;