Fix convert_to_non_syscall() so it arranges for the kernel to be left via ia64_leave_kernel() rather than ia64_leave_syscall(). The latter no longer tolerates being called with pSys=0 and pNonSys=1. Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>