ffs_dev->ffs_release_dev_callback should be accessed only if ffs_dev
is not NULL.

Signed-off-by: Andrzej Pietrasiewicz <andrze...@samsung.com>
---
 drivers/usb/gadget/f_fs.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 306a2b5..78333f0 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -2590,11 +2590,12 @@ static void ffs_release_dev(struct ffs_data *ffs_data)
        ffs_dev_lock();
 
        ffs_dev = ffs_data->private_data;
-       if (ffs_dev)
+       if (ffs_dev) {
                ffs_dev->mounted = false;
-       
-       if (ffs_dev->ffs_release_dev_callback)
-               ffs_dev->ffs_release_dev_callback(ffs_dev);
+
+               if (ffs_dev->ffs_release_dev_callback)
+                       ffs_dev->ffs_release_dev_callback(ffs_dev);
+       }
 
        ffs_dev_unlock();
 }
-- 
1.7.0.4

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