if the partialobject loop does not make progress (xlen = 0), leave it

https://github.com/gphoto/libgphoto2/issues/487

1 files changed, 4 insertions, 0 deletions

diff --git a/camlibs/ptp2/library.c b/camlibs/ptp2/library.c
index 8ff3d0952..b0007c596 100644
--- a/camlibs/ptp2/library.c
+++ b/camlibs/ptp2/library.c
@@ -7917,6 +7917,10 @@ get_file_func (CameraFilesystem *fs, const char *folder, const char *filename,
 					free (ximage);
 					ximage = NULL;
 					offset += xlen;
+					if (!xlen) {
+						GP_LOG_E ("getpartialobject loop: offset=%d, size is %d, xlen returned is 0?", offset, size);
+						break;
+					}
 				}
 				goto done;
 		}