Tools: handle file opening failure

Most of the cases, a file handle (stdin/out) is opened without checking
for error. That operation may still fail, so check for it.

Change-Id: I30c3e7b40858acd8b1662622129bd6557722dccd
Reviewed-by: Ahmad Samir <a.samirh78@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/tools/uic/driver.cpp b/src/tools/uic/driver.cpp
index ab19f5a2b4..110764ee07 100644
--- a/src/tools/uic/driver.cpp
+++ b/src/tools/uic/driver.cpp
@@ -245,9 +245,10 @@ bool Driver::uic(const QString &fileName, DomUI *ui, QTextStream *out)
 bool Driver::uic(const QString &fileName, QTextStream *out)
 {
     QFile f;
-    if (fileName.isEmpty())
-        f.open(stdin, QIODevice::ReadOnly);
-    else {
+    if (fileName.isEmpty()) {
+        if (!f.open(stdin, QIODevice::ReadOnly))
+            return false;
+    } else {
         f.setFileName(fileName);
         if (!f.open(QIODevice::ReadOnly))
             return false;