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commit07bb00ef00upstream. In this code "ret" is type long and "src_objlen" is unsigned int. The problem is that on 32bit systems, when we do the comparison signed longs are type promoted to unsigned int. So negative error codes from do_splice_direct() are treated as success instead of failure. Cc: stable@vger.kernel.org Fixes:1b0c3b9f91("ceph: re-org copy_file_range and fix some error paths") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>