stk: Handle null Text field

Add a NULL check in dbus_apply_text_attributes because in some places
(like DisplayText handler) we call it without checking and we just check
the return value once.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/stk.c b/src/stk.c
index a58513b2..222d4ba3 100644
--- a/src/stk.c
+++ b/src/stk.c
@@ -303,6 +303,9 @@ static char *dbus_apply_text_attributes(const char *text,
 	const uint8_t *j = attr->attributes;
 	const uint8_t *end = j + attr->len;
 
+	if (!text)
+		return NULL;
+
 	if (attr->len & 3)
 		return NULL;