[Bug 36759] winefile: crash when inserting removable media

https://bugs.winehq.org/show_bug.cgi?id=36759

--- Comment #3 from Bruno Jesus  ---
Unfortunately I can't reproduce, a new drive letter is created and I can click
on it to show the files (Xfce auto mounts the drive). Is the drive auto monted
in Debian for you too? Can your user access the files in the pendrive from
Debian?

This situation can happen if read_tree_win [1] returns NULL, then in
refresh_child [2] the variable will child->left.cur will be NULL leading to a
crash at [3] because the dir parameter is NULL.
[1] http://source.winehq.org/source/programs/winefile/winefile.c#0429
[2] http://source.winehq.org/source/programs/winefile/winefile.c#3404
[3] http://source.winehq.org/source/programs/winefile/winefile.c#1371