[PATCH 2/2] Maintab: prevent a segfault in the 'Equipment' tab

[Lubomir I. Ivanov]

From: "Lubomir I. Ivanov" <neolit123 at gmail.com>

When a dive contains no cylinders, clicking the '+'
button could SIGSEGV if current_dive->dc.model is NULL.

Signed-off-by: Lubomir I. Ivanov <neolit123 at gmail.com>
---

    newEditMode=MainTab::NONE) at qt-ui/maintab.cpp:225
    at qt-ui/maintab.cpp:546
...
---
 qt-ui/maintab.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/qt-ui/maintab.cpp b/qt-ui/maintab.cpp
index 4fc543f..8da1137 100644
--- a/qt-ui/maintab.cpp
+++ b/qt-ui/maintab.cpp
@@ -223,6 +223,7 @@ void MainTab::enableEdition(EditMode newEditMode)
 	if (current_dive == NULL || editMode != NONE)
 		return;
 	if ((newEditMode == DIVE || newEditMode == NONE) &&
+	    current_dive->dc.model &&
 	    strcmp(current_dive->dc.model, "manually added dive") == 0) {
 		// editCurrentDive will call enableEdition with newEditMode == MANUALLY_ADDED_DIVE
 		// so exit this function here after editCurrentDive() returns
-- 
1.7.11.msysgit.0