Merge tag 'exynos-dt-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt

From Kukjin Kim:
Update exynos DT for
- usb3phy and dwc3 for exynos5250
- keypad for exynos4412
- TMU clock for exynos4210
- MFC clock for exynos4
- DP controller for exynos5250
- G2D clock for exynos4
- some exynos boards

* tag 'exynos-dt-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (456 commits)
  ARM: dts: add ohci and ehci controller nodes for EXYNOS5440
  ARM: dts: Update G2D documentation for clock entries
  ARM: dts: Add clock entries to G2D node for exynos4x12
  ARM: dts: Add clock entries to G2D node for exynos4210
  ARM: dts: Remove duplicate and add missing G2D nodes
  clk: exynos4: Add additional G2D clocks
  ARM: dts: Document DP clock in samsung,exynos5-dp binding
  ARM: dts: add pin state information for DP HPD support to Exynos5250
  ARM: dts: add dts node for the ahci sata exynos5440
  ARM: dts: add vmmc regulator support for ODROID-X
  ARM: dts: add max77686 node entry for ODROID-X
  ARM: dts: Enable RTC by default on EXYNOS5440
  ARM: dts: Add display timing node to exynos5250-arndale.dts
  ARM: dts: Add clock provider information for DP controller in Exynos5250 SoC
  ARM: dts: Add DT node for DP controller for Arndale Board
  ARM: dts: Remove combiner IRQ node from exynos4x12.dtsi
  ARM: dts: add max8997 device node for exynos4210-origen board
  ARM: dts: Enable TMU on Origen4210 board
  ARM: dts: Add TMU clock entries to exynos4210.dtsi
  ARM: dts: Update MFC documentation for clock entries
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/pnode.c b/fs/pnode.c
index 3d2a7141b87a..9af0df15256e 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -83,7 +83,8 @@ static int do_make_slave(struct mount *mnt)
                 if (peer_mnt == mnt)
                         peer_mnt = NULL;
         }
-        if (IS_MNT_SHARED(mnt) && list_empty(&mnt->mnt_share))
+        if (mnt->mnt_group_id && IS_MNT_SHARED(mnt) &&
+            list_empty(&mnt->mnt_share))
                 mnt_release_group_id(mnt);
 
         list_del_init(&mnt->mnt_share);