This issue was found by Coverity (CID 
1202536)
This proposes a fix for a statement that creates dead code.
The "rc < 0" statement is within code that is run
with "rc > 0".
It seems like "err < 0" was meant to be used here.
This way, the error code is returned by the function.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Steve French <smfrench@gmail.com>
                        ssize_t err;
 
                        err = generic_write_sync(file, iocb->ki_pos - rc, rc);
-                       if (rc < 0)
+                       if (err < 0)
                                rc = err;
                }
        } else {