[PATCH v2] kernel-shark: Disable Capture if trace-cmd can't function

["Yordan Karadzhov (VMware)" <y.karadz@xxxxxxxxx>]

In the case of an error the "Capture" button of the Record dialog is
disabled.

Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@xxxxxxxxx>
---
 kernel-shark/src/KsCaptureDialog.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel-shark/src/KsCaptureDialog.cpp b/kernel-shark/src/KsCaptureDialog.cpp
index 2e6e8f9..888ffea 100644
--- a/kernel-shark/src/KsCaptureDialog.cpp
+++ b/kernel-shark/src/KsCaptureDialog.cpp
@@ -74,6 +74,9 @@ KsCaptureControl::KsCaptureControl(QWidget *parent)
 		_topLayout.addWidget(errorLabel);
 
 		lamAddLine();
+
+		/* Disable "Capture" buttons. */
+		_captureButton.setDisabled(true);
 	}
 
 	pluginList.prepend("nop");
-- 
2.20.1