--- /dev/null
+From 967dc53dc9a5d1c7ba0c9f57fcb9bc640cd9663b Mon Sep 17 00:00:00 2001
+From: Kai Uwe Broulik <kde@privat.broulik.de>
+Date: Wed, 16 May 2018 14:37:33 +0200
+Subject: [FStab Handling] Clean up process running by using lambdas
+
+Encapsulates the QProcess* into the job it's supposed to be doing without storing it as a member and polluting state when multiple
+actions are requested simultaneously.
+
+CCBUG: 388499
+
+Differential Revision: https://phabricator.kde.org/D9653
+---
+ src/solid/devices/backends/fstab/fstabhandling.cpp | 29 +++++++--------
+ src/solid/devices/backends/fstab/fstabhandling.h | 9 ++---
+ .../devices/backends/fstab/fstabstorageaccess.cpp | 42 ++++++++--------------
+ .../devices/backends/fstab/fstabstorageaccess.h | 3 --
+ 4 files changed, 30 insertions(+), 53 deletions(-)
+
+diff --git a/src/solid/devices/backends/fstab/fstabhandling.cpp b/src/solid/devices/backends/fstab/fstabhandling.cpp
+index 9d078dd..e56f55a 100644
+--- a/src/solid/devices/backends/fstab/fstabhandling.cpp
++++ b/src/solid/devices/backends/fstab/fstabhandling.cpp
+@@ -226,34 +226,31 @@ QStringList Solid::Backends::Fstab::FstabHandling::options(const QString &device
+ return options;
+ }
+
+-QProcess *Solid::Backends::Fstab::FstabHandling::callSystemCommand(const QString &commandName,
+- const QStringList &args,
+- QObject *obj, const char *slot)
++bool Solid::Backends::Fstab::FstabHandling::callSystemCommand(const QString &commandName, const QStringList &args,
++ const QObject *receiver, std::function<void(QProcess *)> callback)
+ {
+ QStringList env = QProcess::systemEnvironment();
+ env.replaceInStrings(QRegExp("^PATH=(.*)", Qt::CaseInsensitive), "PATH=/sbin:/bin:/usr/sbin/:/usr/bin");
+
+- QProcess *process = new QProcess(obj);
++ QProcess *process = new QProcess();
+
+- QObject::connect(process, SIGNAL(finished(int,QProcess::ExitStatus)),
+- obj, slot);
++ QObject::connect(process, static_cast<void(QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished), receiver,
++ [process, callback](int exitCode, QProcess::ExitStatus exitStatus) {
++ Q_UNUSED(exitCode);
++ Q_UNUSED(exitStatus);
++ callback(process);
++ process->deleteLater();
++ });
+
+ process->setEnvironment(env);
+ process->start(commandName, args);
+
+ if (process->waitForStarted()) {
+- return process;
+- } else {
+- delete process;
+- return nullptr;
++ return true;
+ }
+-}
+
+-QProcess *Solid::Backends::Fstab::FstabHandling::callSystemCommand(const QString &commandName,
+- const QString &device,
+- QObject *obj, const char *slot)
+-{
+- return callSystemCommand(commandName, QStringList() << device, obj, slot);
++ delete process;
++ return false;
+ }
+
+ void Solid::Backends::Fstab::FstabHandling::_k_updateMtabMountPointsCache()
+diff --git a/src/solid/devices/backends/fstab/fstabhandling.h b/src/solid/devices/backends/fstab/fstabhandling.h
+index 2b6b9d9..bcd6c33 100644
+--- a/src/solid/devices/backends/fstab/fstabhandling.h
++++ b/src/solid/devices/backends/fstab/fstabhandling.h
+@@ -25,6 +25,8 @@
+ #include <QtCore/QString>
+ #include <QtCore/QMultiHash>
+
++#include <functional>
++
+ class QProcess;
+ class QObject;
+
+@@ -44,12 +46,7 @@ public:
+ static QStringList currentMountPoints(const QString &device);
+ static QStringList mountPoints(const QString &device);
+ static QStringList options(const QString &device);
+- static QProcess *callSystemCommand(const QString &commandName,
+- const QStringList &args,
+- QObject *obj, const char *slot);
+- static QProcess *callSystemCommand(const QString &commandName,
+- const QString &device,
+- QObject *obj, const char *slot);
++ static bool callSystemCommand(const QString &commandName, const QStringList &args, const QObject *recvr, std::function<void(QProcess *)> callback);
+ static void flushMtabCache();
+ static void flushFstabCache();
+
+diff --git a/src/solid/devices/backends/fstab/fstabstorageaccess.cpp b/src/solid/devices/backends/fstab/fstabstorageaccess.cpp
+index a4063ff..e8fce5b 100644
+--- a/src/solid/devices/backends/fstab/fstabstorageaccess.cpp
++++ b/src/solid/devices/backends/fstab/fstabstorageaccess.cpp
+@@ -91,10 +91,13 @@ bool FstabStorageAccess::setup()
+ return false;
+ }
+ m_fstabDevice->broadcastActionRequested("setup");
+- m_process = FstabHandling::callSystemCommand("mount", filePath(),
+- this, SLOT(slotSetupFinished(int,QProcess::ExitStatus)));
+-
+- return m_process != nullptr;
++ return FstabHandling::callSystemCommand("mount", {filePath()}, this, [this](QProcess *process) {
++ if (process->exitCode() == 0) {
++ m_fstabDevice->broadcastActionDone("setup", Solid::NoError, QString());
++ } else {
++ m_fstabDevice->broadcastActionDone("setup", Solid::UnauthorizedOperation, process->readAllStandardError());
++ }
++ });
+ }
+
+ void FstabStorageAccess::slotSetupRequested()
+@@ -108,10 +111,13 @@ bool FstabStorageAccess::teardown()
+ return false;
+ }
+ m_fstabDevice->broadcastActionRequested("teardown");
+- m_process = FstabHandling::callSystemCommand("umount", filePath(),
+- this, SLOT(slotTeardownFinished(int,QProcess::ExitStatus)));
+-
+- return m_process != nullptr;
++ return FstabHandling::callSystemCommand("umount", {filePath()}, this, [this](QProcess *process) {
++ if (process->exitCode() == 0) {
++ m_fstabDevice->broadcastActionDone("teardown", Solid::NoError, QString());
++ } else {
++ m_fstabDevice->broadcastActionDone("teardown", Solid::UnauthorizedOperation, process->readAllStandardError());
++ }
++ });
+ }
+
+ void FstabStorageAccess::slotTeardownRequested()
+@@ -119,31 +125,11 @@ void FstabStorageAccess::slotTeardownRequested()
+ emit teardownRequested(m_fstabDevice->udi());
+ }
+
+-void FstabStorageAccess::slotSetupFinished(int exitCode, QProcess::ExitStatus /*exitStatus*/)
+-{
+- if (exitCode == 0) {
+- m_fstabDevice->broadcastActionDone("setup", Solid::NoError, QString());
+- } else {
+- m_fstabDevice->broadcastActionDone("setup", Solid::UnauthorizedOperation, m_process->readAllStandardError());
+- }
+- delete m_process;
+-}
+-
+ void FstabStorageAccess::slotSetupDone(int error, const QString &errorString)
+ {
+ emit setupDone(static_cast<Solid::ErrorType>(error), errorString, m_fstabDevice->udi());
+ }
+
+-void FstabStorageAccess::slotTeardownFinished(int exitCode, QProcess::ExitStatus /*exitStatus*/)
+-{
+- if (exitCode == 0) {
+- m_fstabDevice->broadcastActionDone("teardown", Solid::NoError, QString());
+- } else {
+- m_fstabDevice->broadcastActionDone("teardown", Solid::UnauthorizedOperation, m_process->readAllStandardError());
+- }
+- delete m_process;
+-}
+-
+ void FstabStorageAccess::slotTeardownDone(int error, const QString &errorString)
+ {
+ emit teardownDone(static_cast<Solid::ErrorType>(error), errorString, m_fstabDevice->udi());
+diff --git a/src/solid/devices/backends/fstab/fstabstorageaccess.h b/src/solid/devices/backends/fstab/fstabstorageaccess.h
+index 10ca0a9..61deb88 100644
+--- a/src/solid/devices/backends/fstab/fstabstorageaccess.h
++++ b/src/solid/devices/backends/fstab/fstabstorageaccess.h
+@@ -68,8 +68,6 @@ Q_SIGNALS:
+ void teardownRequested(const QString &udi) Q_DECL_OVERRIDE;
+
+ private Q_SLOTS:
+- void slotSetupFinished(int exitCode, QProcess::ExitStatus exitStatus);
+- void slotTeardownFinished(int exitCode, QProcess::ExitStatus exitStatus);
+ void onMtabChanged(const QString &device);
+ void connectDBusSignals();
+
+@@ -80,7 +78,6 @@ private Q_SLOTS:
+
+ private:
+ Solid::Backends::Fstab::FstabDevice *m_fstabDevice;
+- QProcess *m_process;
+ QString m_filePath;
+ bool m_isAccessible;
+ bool m_isIgnored;
+--
+cgit v0.11.2
+