[gvfs/mtp-backend: 17/64] MTP: Print error stack when push or pull fail.

[Philip Langdale <philipl src gnome org>]

commit b06d12767598d8465f4345b049823bd2aa73c606
Author: Philip Langdale <philipl cloudera com>
Date:   Thu Aug 9 14:50:47 2012 -0700

    MTP: Print error stack when push or pull fail.

 daemon/gvfsbackendmtp.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/daemon/gvfsbackendmtp.c b/daemon/gvfsbackendmtp.c
index 12a9482..6f8b09c 100644
--- a/daemon/gvfsbackendmtp.c
+++ b/daemon/gvfsbackendmtp.c
@@ -749,6 +749,8 @@ do_pull(GVfsBackend *backend,
                               mtp_progress_data);
       g_free(mtp_progress_data);
       if (ret != 0) {
+        LIBMTP_Dump_Errorstack(device);
+        LIBMTP_Clear_Errorstack(device);
         g_vfs_job_failed (G_VFS_JOB (job),
                           G_IO_ERROR,
                           g_vfs_job_is_cancelled(G_VFS_JOB(job)) ?
@@ -840,6 +842,8 @@ do_push(GVfsBackend *backend,
   g_free(mtp_progress_data);
   LIBMTP_destroy_file_t(mtpfile);
   if (ret != 0) {
+    LIBMTP_Dump_Errorstack(device);
+    LIBMTP_Clear_Errorstack(device);
     g_vfs_job_failed (G_VFS_JOB (job),
                       G_IO_ERROR, G_IO_ERROR_FAILED,
                       "Error while uploading entity.");