Miklos Szeredi
c828e913c8
commit6a567e920fupstream. Fuse shouldn't return ENOSYS from its ioctl implementation. If userspace responds with ENOSYS it should be translated to ENOTTY. There are two ways to return an error from the IOCTL request: - fuse_out_header.error - fuse_ioctl_out.result Commit02c0cab8e7("fuse: ioctl: translate ENOSYS") already fixed this issue for the first case, but missed the second case. This patch fixes the second case. Reported-by: Jonathan Katz <jkatz@eitmlabs.org> Closes: https://lore.kernel.org/all/CALKgVmcC1VUV_gJVq70n--omMJZUb4HSh_FqvLTHgNBc+HCLFQ@mail.gmail.com/ Fixes:02c0cab8e7("fuse: ioctl: translate ENOSYS") Cc: <stable@vger.kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>