fbmemory: need unmap if mapping flags are not subset of previous
upstream status: Pending
https://bugzilla.gnome.org/show_bug.cgi?id=789952
diff --git a/gst-libs/gst/allocators/gstfdmemory.c b/gst-libs/gst/allocators/gstfdmemory.c
index ad428a7..1e6125a 100644
--- a/gst-libs/gst/allocators/gstfdmemory.c
+++ b/gst-libs/gst/allocators/gstfdmemory.c
@@ -97,9 +97,13 @@
if ((mem->mmapping_flags & prot) == prot) {
ret = mem->data;
mem->mmap_count++;
+ goto out;
+ } else {
+ /* if mapping flags is not a subset, need unmap first */
+ munmap ((void *) mem->data, gmem->maxsize);
+ mem->data = NULL;
+ mem->mmap_count = 0;;
}
-
- goto out;
}
if (mem->fd != -1) {
