[gthumb] Fixed location loading after mounting volume

[Paolo Bacchilega <paobac src gnome org>]

commit eb831a3c378a3cec98c70e0e74f61acf21139fb2
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Tue Jan 11 13:36:38 2022 +0100

    Fixed location loading after mounting volume
    
    Load the mounted volume root instead of the
    original requested location.

 gthumb/gth-browser.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)
---
diff --git a/gthumb/gth-browser.c b/gthumb/gth-browser.c
index 9a14997a..006ad96f 100644
--- a/gthumb/gth-browser.c
+++ b/gthumb/gth-browser.c
@@ -1785,10 +1785,24 @@ volume_mount_ready_cb (GObject      *source_object,
                return;
        }
 
+       GMount *mount = g_volume_get_mount (G_VOLUME (source_object));
+       if (mount == NULL) {
+               load_data_done (load_data, g_error_new_literal (G_IO_ERROR, G_IO_ERROR_NOT_MOUNTED, ""));
+               load_data_free (load_data);
+               return;
+       }
+
+       GFile *root = g_mount_get_root (mount);
+       if (root == NULL) {
+               load_data_done (load_data, g_error_new_literal (G_IO_ERROR, G_IO_ERROR_NOT_MOUNTED, ""));
+               load_data_free (load_data);
+               return;
+       }
+
        _gth_browser_remove_activity (load_data->browser);
 
        _gth_browser_load (load_data->browser,
-                          load_data->requested_folder->file,
+                          root,
                           load_data->file_to_select,
                           NULL,
                           0,