UBIFS: switch to RO mode after synchronizing

In 'ubifs_garbage_collect()' on error path, we first switch to R/O mode, and
then synchronize write-buffers (to make sure no data are lost). But the GC
write-buffer synchronization will fail, because we are already in R/O mode.
This patch re-orders this and makes sure we first synchronize the write-buffer,
and then switch to R/O mode.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c
index 918d1582ca05..f89a422ca395 100644
--- a/fs/ubifs/gc.c
+++ b/fs/ubifs/gc.c
@@ -774,8 +774,8 @@ out_unlock:
 out:
         ubifs_assert(ret < 0);
         ubifs_assert(ret != -ENOSPC && ret != -EAGAIN);
-        ubifs_ro_mode(c, ret);
         ubifs_wbuf_sync_nolock(wbuf);
+        ubifs_ro_mode(c, ret);
         mutex_unlock(&wbuf->io_mutex);
         ubifs_return_leb(c, lp.lnum);
         return ret;