diff --git a/src/libs/ssh/sshremoteprocessrunner.cpp b/src/libs/ssh/sshremoteprocessrunner.cpp
index 848ff0910dd..a6cc6b6ba0d 100644
--- a/src/libs/ssh/sshremoteprocessrunner.cpp
+++ b/src/libs/ssh/sshremoteprocessrunner.cpp
@@ -148,7 +148,7 @@ void SshRemoteProcessRunner::handleProcessFinished()
     d->m_exitCode = d->m_process->exitCode();
     d->m_errorString = d->m_process->errorString();
     setState(Inactive);
-    emit processClosed(d->m_errorString);
+    emit processClosed();
 }
 
 void SshRemoteProcessRunner::setState(int newState)
diff --git a/src/libs/ssh/sshremoteprocessrunner.h b/src/libs/ssh/sshremoteprocessrunner.h
index 9003bba3e92..c4174007ab0 100644
--- a/src/libs/ssh/sshremoteprocessrunner.h
+++ b/src/libs/ssh/sshremoteprocessrunner.h
@@ -57,7 +57,7 @@ signals:
     void processStarted();
     void readyReadStandardOutput();
     void readyReadStandardError();
-    void processClosed(const QString &error);
+    void processClosed();
 
 private:
     void handleConnected();
diff --git a/src/plugins/boot2qt/qdbmakedefaultappservice.cpp b/src/plugins/boot2qt/qdbmakedefaultappservice.cpp
index 20192d6aad6..dcd1dbc7794 100644
--- a/src/plugins/boot2qt/qdbmakedefaultappservice.cpp
+++ b/src/plugins/boot2qt/qdbmakedefaultappservice.cpp
@@ -66,8 +66,9 @@ void QdbMakeDefaultAppService::handleStdErr()
     emit stdErrData(QString::fromUtf8(d->processRunner->readAllStandardError()));
 }
 
-void QdbMakeDefaultAppService::handleProcessFinished(const QString &error)
+void QdbMakeDefaultAppService::handleProcessFinished()
 {
+    const QString error = d->processRunner->errorString();
     if (!error.isEmpty()) {
         emit errorMessage(tr("Remote process failed: %1").arg(error));
         stopDeployment();
diff --git a/src/plugins/boot2qt/qdbmakedefaultappservice.h b/src/plugins/boot2qt/qdbmakedefaultappservice.h
index cab4b4cb331..f66ee0fc808 100644
--- a/src/plugins/boot2qt/qdbmakedefaultappservice.h
+++ b/src/plugins/boot2qt/qdbmakedefaultappservice.h
@@ -42,7 +42,7 @@ public:
 
 private:
     void handleStdErr();
-    void handleProcessFinished(const QString &error);
+    void handleProcessFinished();
 
     bool isDeploymentNecessary() const final { return true; }
 
diff --git a/src/plugins/projectexplorer/devicesupport/sshdeviceprocesslist.cpp b/src/plugins/projectexplorer/devicesupport/sshdeviceprocesslist.cpp
index fb03b55bb6e..5d8ecb6cc96 100644
--- a/src/plugins/projectexplorer/devicesupport/sshdeviceprocesslist.cpp
+++ b/src/plugins/projectexplorer/devicesupport/sshdeviceprocesslist.cpp
@@ -73,8 +73,9 @@ void SshDeviceProcessList::handleConnectionError()
     reportError(tr("Connection failure: %1").arg(d->process.lastConnectionErrorString()));
 }
 
-void SshDeviceProcessList::handleListProcessFinished(const QString &error)
+void SshDeviceProcessList::handleListProcessFinished()
 {
+    const QString error = d->process.errorString();
     setFinished();
     if (!error.isEmpty()) {
         handleProcessError(error);
diff --git a/src/plugins/projectexplorer/devicesupport/sshdeviceprocesslist.h b/src/plugins/projectexplorer/devicesupport/sshdeviceprocesslist.h
index 60937e65cc0..79af7adca82 100644
--- a/src/plugins/projectexplorer/devicesupport/sshdeviceprocesslist.h
+++ b/src/plugins/projectexplorer/devicesupport/sshdeviceprocesslist.h
@@ -40,7 +40,7 @@ public:
 
 private:
     void handleConnectionError();
-    void handleListProcessFinished(const QString &error);
+    void handleListProcessFinished();
     void handleKillProcessFinished(const QString &errorString);
 
     virtual QString listProcessesCommandLine() const = 0;
diff --git a/src/plugins/qnx/qnxdevicetester.cpp b/src/plugins/qnx/qnxdevicetester.cpp
index a7edee9c158..5b328ec5643 100644
--- a/src/plugins/qnx/qnxdevicetester.cpp
+++ b/src/plugins/qnx/qnxdevicetester.cpp
@@ -145,8 +145,9 @@ void QnxDeviceTester::handleVarRunProcessFinished(const QString &error)
     testNextCommand();
 }
 
-void QnxDeviceTester::handleProcessFinished(const QString &error)
+void QnxDeviceTester::handleProcessFinished()
 {
+    const QString error = m_processRunner->errorString();
     if (m_state == VarRunTest) {
         handleVarRunProcessFinished(error);
         return;
diff --git a/src/plugins/qnx/qnxdevicetester.h b/src/plugins/qnx/qnxdevicetester.h
index 21c555e5381..e5f3a413209 100644
--- a/src/plugins/qnx/qnxdevicetester.h
+++ b/src/plugins/qnx/qnxdevicetester.h
@@ -45,8 +45,7 @@ public:
 
 private slots:
     void handleGenericTestFinished(ProjectExplorer::DeviceTester::TestResult result);
-
-    void handleProcessFinished(const QString &error);
+    void handleProcessFinished();
     void handleConnectionError();
 
 private:
diff --git a/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.cpp b/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.cpp
index 8e6ca8eb9b6..41613633ba8 100644
--- a/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.cpp
+++ b/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.cpp
@@ -115,8 +115,9 @@ void RemoteLinuxCustomCommandDeployService::handleStderr()
     emit stdErrData(QString::fromUtf8(d->runner->readAllStandardError()));
 }
 
-void RemoteLinuxCustomCommandDeployService::handleProcessClosed(const QString &error)
+void RemoteLinuxCustomCommandDeployService::handleProcessClosed()
 {
+    const QString error = d->runner->errorString();
     QTC_ASSERT(d->state == Running, return);
 
     if (!error.isEmpty()) {
diff --git a/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.h b/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.h
index ee0ff0ebcc1..c6f07ff99c3 100644
--- a/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.h
+++ b/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.h
@@ -50,7 +50,7 @@ protected:
 private:
     void handleStdout();
     void handleStderr();
-    void handleProcessClosed(const QString &error);
+    void handleProcessClosed();
 
     Internal::RemoteLinuxCustomCommandDeployservicePrivate *d;
 };
diff --git a/src/plugins/remotelinux/remotelinuxpackageinstaller.cpp b/src/plugins/remotelinux/remotelinuxpackageinstaller.cpp
index 33d40950987..69ad1b0eb3f 100644
--- a/src/plugins/remotelinux/remotelinuxpackageinstaller.cpp
+++ b/src/plugins/remotelinux/remotelinuxpackageinstaller.cpp
@@ -99,8 +99,9 @@ void AbstractRemoteLinuxPackageInstaller::handleConnectionError()
     setFinished();
 }
 
-void AbstractRemoteLinuxPackageInstaller::handleInstallationFinished(const QString &error)
+void AbstractRemoteLinuxPackageInstaller::handleInstallationFinished()
 {
+    const QString error = d->installer->errorString();
     if (!d->isRunning)
         return;
 
diff --git a/src/plugins/remotelinux/remotelinuxpackageinstaller.h b/src/plugins/remotelinux/remotelinuxpackageinstaller.h
index ddf713eda28..3f4ce9d7ccb 100644
--- a/src/plugins/remotelinux/remotelinuxpackageinstaller.h
+++ b/src/plugins/remotelinux/remotelinuxpackageinstaller.h
@@ -54,7 +54,7 @@ protected:
 
 private:
     void handleConnectionError();
-    void handleInstallationFinished(const QString &error);
+    void handleInstallationFinished();
     void handleInstallerOutput();
     void handleInstallerErrorOutput();