Return an empty QStringList if the family string is empty

Since doing a split will create an empty entry, then we can save time
and just return an empty QStringList in this case

Change-Id: I86a6532e7243151493ea4021bfcc05e4c2a9cbf0
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gui/text/qfont.cpp b/src/gui/text/qfont.cpp
index 43dccb1ded..aa03d814be 100644
--- a/src/gui/text/qfont.cpp
+++ b/src/gui/text/qfont.cpp
@@ -206,6 +206,8 @@ static int convertWeights(int weight, bool inverted)
 static QStringList splitIntoFamilies(const QString &family)
 {
     QStringList familyList;
+    if (family.isEmpty())
+        return familyList;
     const auto list = QStringView{family}.split(QLatin1Char(','));
     const int numFamilies = list.size();
     familyList.reserve(numFamilies);