dlm: fix plock dev_write return value

The return value on writes to the plock device should be
the number of bytes written.  It was returning 0 instead
when an nfs lock callback was involved.

Reported-by: Nathan Straz <nstraz@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index d6d6e37..78878c5 100644 (file)
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -379,7 +379,7 @@ static ssize_t dev_write(struct file *file, const char __user *u, size_t count,
                struct plock_xop *xop;
                xop = (struct plock_xop *)op;
                if (xop->callback)
-                       count = dlm_plock_callback(op);
+                       dlm_plock_callback(op);
                else
                        wake_up(&recv_wq);
        } else