[PATCH v1 1/1] usb: gadget: f_fs: Stop ffs_closed NULL pointers.

From: Jim Baxter The struct ffs_data::private_data has a pointer to ffs_dev stored in it during the ffs_fs_mount() function however it is not cleared when the ffs_dev is freed later which causes the ffs_closed function to crash with "Unable to handle kernel NULL pointer

[PATCH v1 1/1] usb: gadget: f_fs: Stop ffs_closed NULL pointers.

From: Jim Baxter The struct ffs_data::private_data has a pointer to ffs_dev stored in it during the ffs_fs_mount() function however it is not cleared when the ffs_dev is freed later which causes the ffs_closed function to crash with "Unable to handle kernel NULL pointer dereference" error when