1 files changed, 2 insertions, 1 deletions

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index e5c4f609f22c..3953fda2e8bd 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -840,7 +840,8 @@ out_putfd:
                 fd = error;
         }
         mutex_unlock(&root->d_inode->i_mutex);
-        mnt_drop_write(mnt);
+        if (!ro)
+                mnt_drop_write(mnt);
 out_putname:
         putname(name);
         return fd;