md: add missing sysfs_notify on array_state update

Changeset 6791875e2e53 has added early return from a function so there is no
sysfs notification for 'active' and 'clean' state change.

Signed-off-by: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 29297e97cdea68c0e9c4f963c3aef42250dd229a..f77cad85404416e20fa8ea0a2a423bb6978ba9ae 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3938,6 +3938,8 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len)
                        } else
                                err = -EBUSY;
                }
+               if (!err)
+                       sysfs_notify_dirent_safe(mddev->sysfs_state);
                spin_unlock(&mddev->lock);
                return err ?: len;
        }