b112f6b syscall-generic: don't overwrite errno

Authored and Committed by jmoyer 6 years ago
    syscall-generic: don't overwrite errno
    
    The io_* system calls should not touch errno.  Fix it.
    
    Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
    
        
file modified
+10 -4